315287968 has 24 divisors (see below), whose sum is σ = 621774468. Its totient is φ = 157377024.

The previous prime is 315287941. The next prime is 315287969. The reversal of 315287968 is 869782513.

It can be written as a sum of positive squares in 2 ways, for example, as 232623504 + 82664464 = 15252^2 + 9092^2 .

It is not an unprimeable number, because it can be changed into a prime (315287969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11580 + ... + 27652.

Almost surely, 2^315287968 is an apocalyptic number.

It is an amenable number.

315287968 is a deficient number, since it is larger than the sum of its proper divisors (306486500).

315287968 is a wasteful number, since it uses less digits than its factorization.

315287968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16696 (or 16688 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 315287968 is about 17756.3500753956. The cubic root of 315287968 is about 680.6164882122.

The spelling of 315287968 in words is "three hundred fifteen million, two hundred eighty-seven thousand, nine hundred sixty-eight".