315135521240 has 16 divisors (see below), whose sum is σ = 709054922880. Its totient is φ = 126054208480.

The previous prime is 315135521231. The next prime is 315135521293. The reversal of 315135521240 is 42125531513.

It is a super-2 number, since 2×315135521240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315135521197 and 315135521206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3939193976 + ... + 3939194055.

It is an arithmetic number, because the mean of its divisors is an integer number (44315932680).

Almost surely, 2^315135521240 is an apocalyptic number.

It is an amenable number.

315135521240 is an abundant number, since it is smaller than the sum of its proper divisors (393919401640).

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

315135521240 is a wasteful number, since it uses less digits than its factorization.

315135521240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878388042 (or 7878388038 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 315135521240 in words is "three hundred fifteen billion, one hundred thirty-five million, five hundred twenty-one thousand, two hundred forty".