312249316 has 12 divisors (see below), whose sum is σ = 559144432. Its totient is φ = 152493768.

The previous prime is 312249313. The next prime is 312249337. The reversal of 312249316 is 613942213.

It is a super-3 number, since 3×312249316³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (312249313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907530 + ... + 907873.

Almost surely, 2^312249316 is an apocalyptic number.

It is an amenable number.

312249316 is a deficient number, since it is larger than the sum of its proper divisors (246895116).

312249316 is a wasteful number, since it uses less digits than its factorization.

312249316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815450 (or 1815448 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 312249316 is about 17670.5776928769. The cubic root of 312249316 is about 678.4228993221.

The spelling of 312249316 in words is "three hundred twelve million, two hundred forty-nine thousand, three hundred sixteen".