39139 has 2 divisors, whose sum is σ = 39140. Its totient is φ = 39138.

The previous prime is 39133. The next prime is 39157. The reversal of 39139 is 93193.

39139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39139 - 2⁵ = 39107 is a prime.

It is a super-2 number, since 2×39139² = 3063722642, which contains 22 as substring.

39139 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (39133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19569 + 19570.

It is an arithmetic number, because the mean of its divisors is an integer number (19570).

2³⁹¹³⁹ is an apocalyptic number.

39139 is a deficient number, since it is larger than the sum of its proper divisors (1).

39139 is an equidigital number, since it uses as much as digits as its factorization.

39139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729, while the sum is 25.

The square root of 39139 is about 197.8357904930. The cubic root of 39139 is about 33.9523554116.

The spelling of 39139 in words is "thirty-nine thousand, one hundred thirty-nine".