231004439 has 2 divisors, whose sum is σ = 231004440. Its totient is φ = 231004438.

The previous prime is 231004421. The next prime is 231004447. The reversal of 231004439 is 934400132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231004439 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 (231000439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115502219 + 115502220.

It is an arithmetic number, because the mean of its divisors is an integer number (115502220).

Almost surely, 2^231004439 is an apocalyptic number.

231004439 is a deficient number, since it is larger than the sum of its proper divisors (1).

231004439 is an equidigital number, since it uses as much as digits as its factorization.

231004439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 231004439 is about 15198.8301852478. The cubic root of 231004439 is about 613.5831742127.

The spelling of 231004439 in words is "two hundred thirty-one million, four thousand, four hundred thirty-nine".