13151936225 has 6 divisors (see below), whose sum is σ = 16308400950. Its totient is φ = 10521548960.

The previous prime is 13151936209. The next prime is 13151936227. The reversal of 13151936225 is 52263915131.

It can be written as a sum of positive squares in 3 ways, for example, as 15108769 + 13136827456 = 3887^2 + 114616^2 .

It is not a de Polignac number, because 13151936225 - 2⁴ = 13151936209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13151936227) 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, 263038700 + ... + 263038749.

It is an arithmetic number, because the mean of its divisors is an integer number (2718066825).

Almost surely, 2^13151936225 is an apocalyptic number.

It is an amenable number.

13151936225 is a deficient number, since it is larger than the sum of its proper divisors (3156464725).

13151936225 is an equidigital number, since it uses as much as digits as its factorization.

13151936225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526077459 (or 526077454 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The spelling of 13151936225 in words is "thirteen billion, one hundred fifty-one million, nine hundred thirty-six thousand, two hundred twenty-five".