136252315251 has 12 divisors (see below), whose sum is σ = 211948046128. Its totient is φ = 83847578544.

The previous prime is 136252315249. The next prime is 136252315289. The reversal of 136252315251 is 152513252631.

136252315251 is a `hidden beast` number, since 1 + 3 + 625 + 2 + 3 + 1 + 5 + 25 + 1 = 666.

It is not a de Polignac number, because 136252315251 - 2¹ = 136252315249 is a prime.

It is a super-2 number, since 2×136252315251² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136252315211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582274735 + ... + 582274968.

Almost surely, 2^136252315251 is an apocalyptic number.

136252315251 is a deficient number, since it is larger than the sum of its proper divisors (75695730877).

136252315251 is a wasteful number, since it uses less digits than its factorization.

136252315251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164549722 (or 1164549719 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 136252315251 its reverse (152513252631), we get a palindrome (288765567882).

The spelling of 136252315251 in words is "one hundred thirty-six billion, two hundred fifty-two million, three hundred fifteen thousand, two hundred fifty-one".