13257124136 has 16 divisors (see below), whose sum is σ = 24862619040. Its totient is φ = 6627092400.

The previous prime is 13257124109. The next prime is 13257124147. The reversal of 13257124136 is 63142175231.

It is a junction number, because it is equal to n+sod(n) for n = 13257124096 and 13257124105.

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, 144890 + ... + 217961.

It is an arithmetic number, because the mean of its divisors is an integer number (1553913690).

Almost surely, 2^13257124136 is an apocalyptic number.

It is an amenable number.

13257124136 is a deficient number, since it is larger than the sum of its proper divisors (11605494904).

13257124136 is a wasteful number, since it uses less digits than its factorization.

13257124136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367424 (or 367420 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

Adding to 13257124136 its reverse (63142175231), we get a palindrome (76399299367).

The spelling of 13257124136 in words is "thirteen billion, two hundred fifty-seven million, one hundred twenty-four thousand, one hundred thirty-six".