239056139 has 4 divisors (see below), whose sum is σ = 273207024. Its totient is φ = 204905256.

The previous prime is 239056127. The next prime is 239056163. The reversal of 239056139 is 931650932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 239056139 - 2⁴ = 239056123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239056039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17075432 + ... + 17075445.

It is an arithmetic number, because the mean of its divisors is an integer number (68301756).

Almost surely, 2^239056139 is an apocalyptic number.

239056139 is a deficient number, since it is larger than the sum of its proper divisors (34150885).

239056139 is an equidigital number, since it uses as much as digits as its factorization.

239056139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34150884.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 239056139 is about 15461.4403921498. The cubic root of 239056139 is about 620.6307654527.

The spelling of 239056139 in words is "two hundred thirty-nine million, fifty-six thousand, one hundred thirty-nine".