315135253251 has 72 divisors (see below), whose sum is σ = 574408545984. Its totient is φ = 165011454720.

The previous prime is 315135253241. The next prime is 315135253267. The reversal of 315135253251 is 152352531513.

315135253251 is a `hidden beast` number, since 3 + 1 + 5 + 1 + 352 + 53 + 251 = 666.

It is not a de Polignac number, because 315135253251 - 2¹⁸ = 315134991107 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (315135253241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 584806 + ... + 986036.

It is an arithmetic number, because the mean of its divisors is an integer number (7977896472).

Almost surely, 2^315135253251 is an apocalyptic number.

315135253251 is a deficient number, since it is larger than the sum of its proper divisors (259273292733).

315135253251 is a wasteful number, since it uses less digits than its factorization.

315135253251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401401 (or 401391 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

Adding to 315135253251 its reverse (152352531513), we get a palindrome (467487784764).

The spelling of 315135253251 in words is "three hundred fifteen billion, one hundred thirty-five million, two hundred fifty-three thousand, two hundred fifty-one".