312431049 has 48 divisors (see below), whose sum is σ = 550637568. Its totient is φ = 166634496.

The previous prime is 312431039. The next prime is 312431087. The reversal of 312431049 is 940134213.

It is not a de Polignac number, because 312431049 - 2¹² = 312426953 is a prime.

It is a super-2 number, since 2×312431049² = 195226320758480802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312431039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134869 + ... + 137165.

It is an arithmetic number, because the mean of its divisors is an integer number (11471616).

Almost surely, 2^312431049 is an apocalyptic number.

It is an amenable number.

312431049 is a deficient number, since it is larger than the sum of its proper divisors (238206519).

312431049 is a wasteful number, since it uses less digits than its factorization.

312431049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 312431049 is about 17675.7191932889. The cubic root of 312431049 is about 678.5544906618.

The spelling of 312431049 in words is "three hundred twelve million, four hundred thirty-one thousand, forty-nine".