315215122235136 has 72 divisors (see below), whose sum is σ = 854760818010960. Its totient is φ = 103089222352896.

The previous prime is 315215122235113. The next prime is 315215122235171. The reversal of 315215122235136 is 631532221512513.

It is a congruent 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, 3872000401 + ... + 3872081808.

It is an arithmetic number, because the mean of its divisors is an integer number (11871678027930).

Almost surely, 2^{315215122235136} is an apocalyptic number.

It is an amenable number.

315215122235136 is an abundant number, since it is smaller than the sum of its proper divisors (539545695775824).

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

315215122235136 is an equidigital number, since it uses as much as digits as its factorization.

315215122235136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744082281 (or 7744082267 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

Adding to 315215122235136 its reverse (631532221512513), we get a palindrome (946747343747649).

The spelling of 315215122235136 in words is "three hundred fifteen trillion, two hundred fifteen billion, one hundred twenty-two million, two hundred thirty-five thousand, one hundred thirty-six".