315481998252 has 24 divisors (see below), whose sum is σ = 736135658496. Its totient is φ = 105159095248.

The previous prime is 315481998239. The next prime is 315481998253. The reversal of 315481998252 is 252899184513.

It is a junction number, because it is equal to n+sod(n) for n = 315481998192 and 315481998201.

It is not an unprimeable number, because it can be changed into a prime (315481998253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873733 + ... + 1180835.

It is an arithmetic number, because the mean of its divisors is an integer number (30672319104).

Almost surely, 2^315481998252 is an apocalyptic number.

It is an amenable number.

315481998252 is an abundant number, since it is smaller than the sum of its proper divisors (420653660244).

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

315481998252 is a wasteful number, since it uses less digits than its factorization.

315481998252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392717 (or 392715 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 57.

The spelling of 315481998252 in words is "three hundred fifteen billion, four hundred eighty-one million, nine hundred ninety-eight thousand, two hundred fifty-two".