315256636 has 24 divisors (see below), whose sum is σ = 596586816. Its totient is φ = 145198080.

The previous prime is 315256633. The next prime is 315256637. The reversal of 315256636 is 636652513.

It is a junction number, because it is equal to n+sod(n) for n = 315256595 and 315256604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315256631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46125 + ... + 52516.

It is an arithmetic number, because the mean of its divisors is an integer number (24857784).

Almost surely, 2^315256636 is an apocalyptic number.

It is an amenable number.

315256636 is a deficient number, since it is larger than the sum of its proper divisors (281330180).

315256636 is a wasteful number, since it uses less digits than its factorization.

315256636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98709 (or 98707 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The square root of 315256636 is about 17755.4677775608. The cubic root of 315256636 is about 680.5939418584.

The spelling of 315256636 in words is "three hundred fifteen million, two hundred fifty-six thousand, six hundred thirty-six".