13252117136 has 30 divisors (see below), whose sum is σ = 26388721170. Its totient is φ = 6446965248.

The previous prime is 13252117111. The next prime is 13252117139. The reversal of 13252117136 is 63171125231.

It can be written as a sum of positive squares in 3 ways, for example, as 10716390400 + 2535726736 = 103520^2 + 50356^2 .

It is a hoax number, since the sum of its digits (32) 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 (13252117139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280601 + ... + 324408.

It is an arithmetic number, because the mean of its divisors is an integer number (879624039).

Almost surely, 2^13252117136 is an apocalyptic number.

13252117136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13252117136 is a deficient number, since it is larger than the sum of its proper divisors (13136604034).

13252117136 is an equidigital number, since it uses as much as digits as its factorization.

13252117136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605091 (or 605048 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The spelling of 13252117136 in words is "thirteen billion, two hundred fifty-two million, one hundred seventeen thousand, one hundred thirty-six".