13161925 has 12 divisors (see below), whose sum is σ = 18652576. Its totient is φ = 9025200.

The previous prime is 13161923. The next prime is 13161931. The reversal of 13161925 is 52916131.

13161925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13161925 - 2¹ = 13161923 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13161893 and 13161902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37431 + ... + 37780.

Almost surely, 2^13161925 is an apocalyptic number.

It is an amenable number.

13161925 is a deficient number, since it is larger than the sum of its proper divisors (5490651).

13161925 is an equidigital number, since it uses as much as digits as its factorization.

13161925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75228 (or 75223 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 13161925 is about 3627.9367414551. The cubic root of 13161925 is about 236.1056993249.

The spelling of 13161925 in words is "thirteen million, one hundred sixty-one thousand, nine hundred twenty-five".