13425139 has 16 divisors (see below), whose sum is σ = 17059840. Its totient is φ = 10277280.

The previous prime is 13425133. The next prime is 13425149. The reversal of 13425139 is 93152431.

It is not a de Polignac number, because 13425139 - 2⁵ = 13425107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13425133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (1066240).

Almost surely, 2^13425139 is an apocalyptic number.

13425139 is a deficient number, since it is larger than the sum of its proper divisors (3634701).

13425139 is a wasteful number, since it uses less digits than its factorization.

13425139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810.

The product of its digits is 3240, while the sum is 28.

The square root of 13425139 is about 3664.0331603303. The cubic root of 13425139 is about 237.6692142202.

The spelling of 13425139 in words is "thirteen million, four hundred twenty-five thousand, one hundred thirty-nine".