239234231 has 2 divisors, whose sum is σ = 239234232. Its totient is φ = 239234230.

The previous prime is 239234227. The next prime is 239234249. The reversal of 239234231 is 132432932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 239234231 - 2² = 239234227 is a prime.

It is a super-2 number, since 2×239234231² = 114466034564322722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 239234194 and 239234203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239234731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119617115 + 119617116.

It is an arithmetic number, because the mean of its divisors is an integer number (119617116).

Almost surely, 2^239234231 is an apocalyptic number.

239234231 is a deficient number, since it is larger than the sum of its proper divisors (1).

239234231 is an equidigital number, since it uses as much as digits as its factorization.

239234231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 239234231 is about 15467.1985504809. The cubic root of 239234231 is about 620.7848463291.

The spelling of 239234231 in words is "two hundred thirty-nine million, two hundred thirty-four thousand, two hundred thirty-one".