315904431 has 16 divisors (see below), whose sum is σ = 444012800. Its totient is φ = 199231488.

The previous prime is 315904423. The next prime is 315904439. The reversal of 315904431 is 134409513.

It is an interprime number because it is at equal distance from previous prime (315904423) and next prime (315904439).

It is not a de Polignac number, because 315904431 - 2³ = 315904423 is a prime.

It is a super-2 number, since 2×315904431² = 199591219050867522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315904439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40230 + ... + 47436.

It is an arithmetic number, because the mean of its divisors is an integer number (27750800).

Almost surely, 2^315904431 is an apocalyptic number.

315904431 is a deficient number, since it is larger than the sum of its proper divisors (128108369).

315904431 is a wasteful number, since it uses less digits than its factorization.

315904431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 315904431 is about 17773.7005432183. The cubic root of 315904431 is about 681.0597884807.

The spelling of 315904431 in words is "three hundred fifteen million, nine hundred four thousand, four hundred thirty-one".