315531145900 has 18 divisors (see below), whose sum is σ = 684702586820. Its totient is φ = 126212458320.

The previous prime is 315531145861. The next prime is 315531145901. The reversal of 315531145900 is 9541135513.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 315531145900.

It is not an unprimeable number, because it can be changed into a prime (315531145901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1577655630 + ... + 1577655829.

Almost surely, 2^315531145900 is an apocalyptic number.

It is an amenable number.

315531145900 is an abundant number, since it is smaller than the sum of its proper divisors (369171440920).

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

315531145900 is a wasteful number, since it uses less digits than its factorization.

315531145900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155311473 (or 3155311466 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 315531145900 in words is "three hundred fifteen billion, five hundred thirty-one million, one hundred forty-five thousand, nine hundred".