315078972 has 48 divisors (see below), whose sum is σ = 802916352. Its totient is φ = 95578560.

The previous prime is 315078971. The next prime is 315078977. The reversal of 315078972 is 279870513.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315078971) 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, 3148 + ... + 25299.

It is an arithmetic number, because the mean of its divisors is an integer number (16727424).

Almost surely, 2^315078972 is an apocalyptic number.

It is an amenable number.

315078972 is an abundant number, since it is smaller than the sum of its proper divisors (487837380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315078972 is a wasteful number, since it uses less digits than its factorization.

315078972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28538 (or 28536 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 315078972 is about 17750.4639939355. The cubic root of 315078972 is about 680.4660674541.

The spelling of 315078972 in words is "three hundred fifteen million, seventy-eight thousand, nine hundred seventy-two".