44992139 has 2 divisors, whose sum is σ = 44992140. Its totient is φ = 44992138.

The previous prime is 44992099. The next prime is 44992141. The reversal of 44992139 is 93129944.

44992139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44992139 - 2²⁰ = 43943563 is a prime.

Together with 44992141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44992096 and 44992105.

It is not a weakly prime, because it can be changed into another prime (44992169) 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 as a sum of consecutive naturals, namely, 22496069 + 22496070.

It is an arithmetic number, because the mean of its divisors is an integer number (22496070).

Almost surely, 2^44992139 is an apocalyptic number.

44992139 is a deficient number, since it is larger than the sum of its proper divisors (1).

44992139 is an equidigital number, since it uses as much as digits as its factorization.

44992139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 44992139 is about 6707.6179825628. The cubic root of 44992139 is about 355.6686175849.

The spelling of 44992139 in words is "forty-four million, nine hundred ninety-two thousand, one hundred thirty-nine".