44125139 has 4 divisors (see below), whose sum is σ = 44138856. Its totient is φ = 44111424.

The previous prime is 44125091. The next prime is 44125141. The reversal of 44125139 is 93152144.

44125139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 44125139 - 2²⁰ = 43076563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44125189) 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 3 ways as a sum of consecutive naturals, for example, 872 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (11034714).

Almost surely, 2^44125139 is an apocalyptic number.

44125139 is a deficient number, since it is larger than the sum of its proper divisors (13717).

44125139 is an equidigital number, since it uses as much as digits as its factorization.

44125139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716.

The product of its digits is 4320, while the sum is 29.

The square root of 44125139 is about 6642.6755904530. The cubic root of 44125139 is about 353.3692017897.

The spelling of 44125139 in words is "forty-four million, one hundred twenty-five thousand, one hundred thirty-nine".