13157909225 has 12 divisors (see below), whose sum is σ = 16317236880. Its totient is φ = 10525405200.

The previous prime is 13157909183. The next prime is 13157909243. The reversal of 13157909225 is 52290975131.

It is a happy number.

It is not a de Polignac number, because 13157909225 - 2¹⁴ = 13157892841 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506606 + ... + 531944.

It is an arithmetic number, because the mean of its divisors is an integer number (1359769740).

Almost surely, 2^13157909225 is an apocalyptic number.

It is an amenable number.

13157909225 is a deficient number, since it is larger than the sum of its proper divisors (3159327655).

13157909225 is a wasteful number, since it uses less digits than its factorization.

13157909225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46120 (or 46115 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 13157909225 in words is "thirteen billion, one hundred fifty-seven million, nine hundred nine thousand, two hundred twenty-five".