231044939 has 2 divisors, whose sum is σ = 231044940. Its totient is φ = 231044938.

The previous prime is 231044929. The next prime is 231044941. The reversal of 231044939 is 939440132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231044939 - 2²⁴ = 214267723 is a prime.

Together with 231044941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 231044899 and 231044908.

It is not a weakly prime, because it can be changed into another prime (231044929) 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 as a sum of consecutive naturals, namely, 115522469 + 115522470.

It is an arithmetic number, because the mean of its divisors is an integer number (115522470).

Almost surely, 2^231044939 is an apocalyptic number.

231044939 is a deficient number, since it is larger than the sum of its proper divisors (1).

231044939 is an equidigital number, since it uses as much as digits as its factorization.

231044939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 231044939 is about 15200.1624662370. The cubic root of 231044939 is about 613.6190301852.

The spelling of 231044939 in words is "two hundred thirty-one million, forty-four thousand, nine hundred thirty-nine".