315140520 has 32 divisors (see below), whose sum is σ = 945421920. Its totient is φ = 84037440.

The previous prime is 315140519. The next prime is 315140521. The reversal of 315140520 is 25041513.

It is an interprime number because it is at equal distance from previous prime (315140519) and next prime (315140521).

It is not an unprimeable number, because it can be changed into a prime (315140521) 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, 1312966 + ... + 1313205.

It is an arithmetic number, because the mean of its divisors is an integer number (29544435).

Almost surely, 2^315140520 is an apocalyptic number.

315140520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315140520 is an abundant number, since it is smaller than the sum of its proper divisors (630281400).

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

315140520 is a wasteful number, since it uses less digits than its factorization.

315140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626185 (or 2626181 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 315140520 is about 17752.1976104369. The cubic root of 315140520 is about 680.5103723241.

The spelling of 315140520 in words is "three hundred fifteen million, one hundred forty thousand, five hundred twenty".