231024539 has 2 divisors, whose sum is σ = 231024540. Its totient is φ = 231024538.

The previous prime is 231024517. The next prime is 231024551. The reversal of 231024539 is 935420132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231024539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231024569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115512269 + 115512270.

It is an arithmetic number, because the mean of its divisors is an integer number (115512270).

Almost surely, 2^231024539 is an apocalyptic number.

231024539 is a deficient number, since it is larger than the sum of its proper divisors (1).

231024539 is an equidigital number, since it uses as much as digits as its factorization.

231024539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 231024539 is about 15199.4914059649. The cubic root of 231024539 is about 613.6009699228.

The spelling of 231024539 in words is "two hundred thirty-one million, twenty-four thousand, five hundred thirty-nine".