37939139 has 4 divisors (see below), whose sum is σ = 43359024. Its totient is φ = 32519256.

The previous prime is 37939103. The next prime is 37939141. The reversal of 37939139 is 93193973.

It is a happy number.

37939139 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.

It is not a de Polignac number, because 37939139 - 2¹² = 37935043 is a prime.

It is a super-2 number, since 2×37939139² = 2878756536122642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37939139.

It is not an unprimeable number, because it can be changed into a prime (37939159) 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, 2709932 + ... + 2709945.

It is an arithmetic number, because the mean of its divisors is an integer number (10839756).

Almost surely, 2^37939139 is an apocalyptic number.

37939139 is a deficient number, since it is larger than the sum of its proper divisors (5419885).

37939139 is an equidigital number, since it uses as much as digits as its factorization.

37939139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419884.

The product of its digits is 137781, while the sum is 44.

The square root of 37939139 is about 6159.4755458562. The cubic root of 37939139 is about 336.0179595228.

The spelling of 37939139 in words is "thirty-seven million, nine hundred thirty-nine thousand, one hundred thirty-nine".