15044139 has 24 divisors (see below), whose sum is σ = 24740352. Its totient is φ = 8719920.

The previous prime is 15044131. The next prime is 15044149. The reversal of 15044139 is 93144051.

It is not a de Polignac number, because 15044139 - 2³ = 15044131 is a prime.

It is a super-2 number, since 2×15044139² = 452652236502642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15044131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027 + ... + 5580.

It is an arithmetic number, because the mean of its divisors is an integer number (1030848).

Almost surely, 2^15044139 is an apocalyptic number.

15044139 is a deficient number, since it is larger than the sum of its proper divisors (9696213).

15044139 is a wasteful number, since it uses less digits than its factorization.

15044139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647 (or 6644 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 15044139 is about 3878.6774807916. The cubic root of 15044139 is about 246.8628730677.

The spelling of 15044139 in words is "fifteen million, forty-four thousand, one hundred thirty-nine".