315216575 has 12 divisors (see below), whose sum is σ = 396704520. Its totient is φ = 248408160.

The previous prime is 315216571. The next prime is 315216581. The reversal of 315216575 is 575612513.

It is not a de Polignac number, because 315216575 - 2² = 315216571 is a prime.

It is a super-2 number, since 2×315216575² = 198722978309461250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315216571) 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 in 11 ways as a sum of consecutive naturals, for example, 92420 + ... + 95769.

It is an arithmetic number, because the mean of its divisors is an integer number (33058710).

Almost surely, 2^315216575 is an apocalyptic number.

315216575 is a deficient number, since it is larger than the sum of its proper divisors (81487945).

315216575 is a wasteful number, since it uses less digits than its factorization.

315216575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188266 (or 188261 counting only the distinct ones).

The product of its digits is 31500, while the sum is 35.

The square root of 315216575 is about 17754.3396103601. The cubic root of 315216575 is about 680.5651119827.

The spelling of 315216575 in words is "three hundred fifteen million, two hundred sixteen thousand, five hundred seventy-five".