13137625385 has 8 divisors (see below), whose sum is σ = 16308776520. Its totient is φ = 10147682944.

The previous prime is 13137625379. The next prime is 13137625393. The reversal of 13137625385 is 58352673131.

It can be written as a sum of positive squares in 4 ways, for example, as 4766107369 + 8371518016 = 69037^2 + 91496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13137625385 - 2³⁰ = 12063883561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45302012 + ... + 45302301.

It is an arithmetic number, because the mean of its divisors is an integer number (2038597065).

Almost surely, 2^13137625385 is an apocalyptic number.

It is an amenable number.

13137625385 is a deficient number, since it is larger than the sum of its proper divisors (3171151135).

13137625385 is an equidigital number, since it uses as much as digits as its factorization.

13137625385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90604347.

The product of its digits is 453600, while the sum is 44.

The spelling of 13137625385 in words is "thirteen billion, one hundred thirty-seven million, six hundred twenty-five thousand, three hundred eighty-five".