312896431 has 2 divisors, whose sum is σ = 312896432. Its totient is φ = 312896430.

The previous prime is 312896417. The next prime is 312896459. The reversal of 312896431 is 134698213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312896431 - 2⁷ = 312896303 is a prime.

It is a super-2 number, since 2×312896431² = 195808353065075522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312896401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156448215 + 156448216.

It is an arithmetic number, because the mean of its divisors is an integer number (156448216).

Almost surely, 2^312896431 is an apocalyptic number.

312896431 is a deficient number, since it is larger than the sum of its proper divisors (1).

312896431 is an equidigital number, since it uses as much as digits as its factorization.

312896431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 312896431 is about 17688.8787377832. The cubic root of 312896431 is about 678.8912373701.

The spelling of 312896431 in words is "three hundred twelve million, eight hundred ninety-six thousand, four hundred thirty-one".