231044239 has 2 divisors, whose sum is σ = 231044240. Its totient is φ = 231044238.

The previous prime is 231044159. The next prime is 231044249. The reversal of 231044239 is 932440132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231044239 - 2²¹ = 228947087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231044249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115522119 + 115522120.

It is an arithmetic number, because the mean of its divisors is an integer number (115522120).

Almost surely, 2^231044239 is an apocalyptic number.

231044239 is a deficient number, since it is larger than the sum of its proper divisors (1).

231044239 is an equidigital number, since it uses as much as digits as its factorization.

231044239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 231044239 is about 15200.1394401499. The cubic root of 231044239 is about 613.6184104879.

The spelling of 231044239 in words is "two hundred thirty-one million, forty-four thousand, two hundred thirty-nine".