185 (number)

In mathematics

• 185 is an odd number
• 185 is a composite number
• 185 is a deficient number, as 43 is less than 185
• 185 is an odious number
• 185 is a square-free number
• Divisors of 185: 1, 5, 37, 185
• 185 is the sum of two square numbers in two different ways: 13²+ 4² and 11² + 8²
• 185 is the difference of 2 square numbers: 21² - 16²
• 185 is a 20-gonal number

  In astronomy

• 185 Eunike is a large, dark, main belt asteroid
• NGC 185 is a dwarf elliptical galaxy in the constellation Cassiopeia
• SN 185 was a supernova which appeared in the year 185, between the constellations Circinus and Centaurus

  In the military

• 185 Airborne Division Folgore of the Italian Army during World War II
• 185th Air Refueling Squadron unit of the Oklahoma Air National Guard
• 185th Aviation Brigade of the United States Army is a unit of the Mississippi Army National Guard
• 185th Canadian Infantry Battalion, CEF
• 185th Infantry Brigade unit of the British Expeditionary Force during World War II
• 185th Infantry Regiment is a combat regiment of the United States Army from the California Army National Guard
• was a guided missile destroyer of the Bundesmarine
• was a Royal Navy Type 21 frigate from 1975–1994
• was a Royal Navy
• Polikarpov I-185 was a Soviet fighter aircraft designed in 1941, but never produced
• , a Royal Maritime Auxiliary Service SAL-class mooring and salvage vessel
• US Air Force 185th Air Refueling Wing unit at Sioux Gateway Airport
• was a United States Navy following World War I
• was a United States Navy tugboat destroyer during World War II
• was a United States Navy during World War II
• was a United States Navy during World War II

  In music

• Yamaha PSR-185 portable musical keyboard by the Yamaha Corporation

  In transportation

• Alfa Romeo 185T Formula One car
• British Rail Class 185
• VP185 - an engine for the British Rail Class 43, to replace the Paxman Valenta
• Cessna 185 single-engine plane
• London Buses route 185
• 185 series Multiple unit trains in Japan
• Willow Creek/Southwest 185th Avenue Transit Center, Hillsboro, Oregon
• Air Tahoma Flight 185 was a scheduled cargo flight from Memphis to Cincinnati which crashed August 13, 2004
• SilkAir Flight 185, was a scheduled passenger flight from Jakarta, Indonesia to Singapore, which crashed December 19, 1997, the subject of a

  In other fields

• The year AD 185 or 185 BC
• The atomic number of an element temporarily called
• The improv game of 185 where, given a subject from the audience, players make up jokes beginning with "185 walk into a bar."
• Minuscule 185 is a Greek minuscule manuscript of the New Testament, on parchment
• Kevin St. Onge set a Guinness World Record by throwing a single playing card and one inch on June 12, 1979
• Rotax 185 is a, single cylinder, two-stroke, industrial engine, built by Rotax of Austria for fire fighting