13136718125 has 20 divisors (see below), whose sum is σ = 17381283084. Its totient is φ = 9891168000.

The previous prime is 13136718113. The next prime is 13136718137. The reversal of 13136718125 is 52181763131.

It is an interprime number because it is at equal distance from previous prime (13136718113) and next prime (13136718137).

It can be written as a sum of positive squares in 10 ways, for example, as 6859483684 + 6277234441 = 82822^2 + 79229^2 .

It is not a de Polignac number, because 13136718125 - 2²⁴ = 13119940909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 607574 + ... + 628823.

Almost surely, 2^13136718125 is an apocalyptic number.

It is an amenable number.

13136718125 is a deficient number, since it is larger than the sum of its proper divisors (4244564959).

13136718125 is an equidigital number, since it uses as much as digits as its factorization.

13136718125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236434 (or 1236419 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The spelling of 13136718125 in words is "thirteen billion, one hundred thirty-six million, seven hundred eighteen thousand, one hundred twenty-five".