315312456 has 16 divisors (see below), whose sum is σ = 788281200. Its totient is φ = 105104144.

The previous prime is 315312449. The next prime is 315312479. The reversal of 315312456 is 654213513.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6568986 + ... + 6569033.

It is an arithmetic number, because the mean of its divisors is an integer number (49267575).

Almost surely, 2^315312456 is an apocalyptic number.

It is an amenable number.

315312456 is an abundant number, since it is smaller than the sum of its proper divisors (472968744).

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

315312456 is a wasteful number, since it uses less digits than its factorization.

315312456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13138028 (or 13138024 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 315312456 is about 17757.0396181345. The cubic root of 315312456 is about 680.6341086172.

Adding to 315312456 its reverse (654213513), we get a palindrome (969525969).

The spelling of 315312456 in words is "three hundred fifteen million, three hundred twelve thousand, four hundred fifty-six".