334

334 = 2 x 167. It is an even semiprime (A100484).

334 x 3! x 3! x 4! + 1 = 288,577, a prime.

334 is the number of trees on on 13 vertices with diameter 7.

334 is 2314 in base 5 and 1314 in base 6.

334 and 335 are consecutive semiprimes (A070552).

The sum of the first 334 primes is a prime (A013916).

The sum of the squares of the prime factors of 334 is a prime (A134616): 2² + 167² = 27,893, a prime.

Source: Prime Curios!