315513530 has 8 divisors (see below), whose sum is σ = 567924372. Its totient is φ = 126205408.

The previous prime is 315513529. The next prime is 315513547. The reversal of 315513530 is 35315513.

It can be written as a sum of positive squares in 2 ways, for example, as 298563841 + 16949689 = 17279^2 + 4117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×315513530² = 199097575226121800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315513530.

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, 15775667 + ... + 15775686.

Almost surely, 2^315513530 is an apocalyptic number.

315513530 is a deficient number, since it is larger than the sum of its proper divisors (252410842).

315513530 is a wasteful number, since it uses less digits than its factorization.

315513530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31551360.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 315513530 is about 17762.7005266654. The cubic root of 315513530 is about 680.7787574559.

The spelling of 315513530 in words is "three hundred fifteen million, five hundred thirteen thousand, five hundred thirty".