315145525220 has 24 divisors (see below), whose sum is σ = 673022649600. Its totient is φ = 123921629792.

The previous prime is 315145525213. The next prime is 315145525243. The reversal of 315145525220 is 22525541513.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133535060 + ... + 133537419.

It is an arithmetic number, because the mean of its divisors is an integer number (28042610400).

Almost surely, 2^315145525220 is an apocalyptic number.

It is an amenable number.

315145525220 is an abundant number, since it is smaller than the sum of its proper divisors (357877124380).

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

315145525220 is a wasteful number, since it uses less digits than its factorization.

315145525220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267072547 (or 267072545 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 315145525220 in words is "three hundred fifteen billion, one hundred forty-five million, five hundred twenty-five thousand, two hundred twenty".