315113845 has 16 divisors (see below), whose sum is σ = 383670000. Its totient is φ = 248421888.

The previous prime is 315113831. The next prime is 315113881. The reversal of 315113845 is 548311513.

It can be written as a sum of positive squares in 8 ways, for example, as 16826404 + 298287441 = 4102^2 + 17271^2 .

It is a cyclic number.

It is not a de Polignac number, because 315113845 - 2²⁵ = 281559413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154291 + ... + 156319.

It is an arithmetic number, because the mean of its divisors is an integer number (23979375).

Almost surely, 2^315113845 is an apocalyptic number.

It is an amenable number.

315113845 is a deficient number, since it is larger than the sum of its proper divisors (68556155).

315113845 is a wasteful number, since it uses less digits than its factorization.

315113845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its digits is 7200, while the sum is 31.

The square root of 315113845 is about 17751.4462791064. The cubic root of 315113845 is about 680.4911712321.

The spelling of 315113845 in words is "three hundred fifteen million, one hundred thirteen thousand, eight hundred forty-five".