34139239 has 4 divisors (see below), whose sum is σ = 34151040. Its totient is φ = 34127440.

The previous prime is 34139233. The next prime is 34139267. The reversal of 34139239 is 93293143.

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 34139239 - 2⁵ = 34139207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34139233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722 + ... + 8440.

It is an arithmetic number, because the mean of its divisors is an integer number (8537760).

Almost surely, 2^34139239 is an apocalyptic number.

34139239 is a deficient number, since it is larger than the sum of its proper divisors (11801).

34139239 is an equidigital number, since it uses as much as digits as its factorization.

34139239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11800.

The product of its digits is 17496, while the sum is 34.

The square root of 34139239 is about 5842.8793415576. The cubic root of 34139239 is about 324.4028134026.

The spelling of 34139239 in words is "thirty-four million, one hundred thirty-nine thousand, two hundred thirty-nine".