315255020 has 24 divisors (see below), whose sum is σ = 690820704. Its totient is φ = 120619136.

The previous prime is 315255013. The next prime is 315255029. The reversal of 315255020 is 20552513.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (315255029) 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, 342209 + ... + 343128.

It is an arithmetic number, because the mean of its divisors is an integer number (28784196).

Almost surely, 2^315255020 is an apocalyptic number.

It is an amenable number.

315255020 is an abundant number, since it is smaller than the sum of its proper divisors (375565684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315255020 is a wasteful number, since it uses less digits than its factorization.

315255020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685369 (or 685367 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 315255020 is about 17755.4222703939. The cubic root of 315255020 is about 680.5927789522.

The spelling of 315255020 in words is "three hundred fifteen million, two hundred fifty-five thousand, twenty".