13639125 has 32 divisors (see below), whose sum is σ = 23332608. Its totient is φ = 7070400.

The previous prime is 13639111. The next prime is 13639139. The reversal of 13639125 is 52193631.

13639125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13639111) and next prime (13639139).

It is not a de Polignac number, because 13639125 - 2⁷ = 13638997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13639092 and 13639101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13384 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (729144).

Almost surely, 2^13639125 is an apocalyptic number.

13639125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13639125 is a deficient number, since it is larger than the sum of its proper divisors (9693483).

13639125 is an equidigital number, since it uses as much as digits as its factorization.

13639125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1028 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 13639125 is about 3693.1186008575. The cubic root of 13639125 is about 238.9253164408.

The spelling of 13639125 in words is "thirteen million, six hundred thirty-nine thousand, one hundred twenty-five".