333

333 = 3² x 37.

333 has a representation as a sum of two squares: 333 = 3² + 18².

333 = 101 + 11 + 2 + 3 + 41 + 5 + 61 + 7 + 83 + 19, where each term is the smallest prime containing 0, 1, 2, ..., and 9, respectively.

333¹²² + 122³³³ is a prime number.

The Sikorsky Model S-333 is a light turbine-powered helicopter.

Source: Number Gossip