115810231 has 2 divisors, whose sum is σ = 115810232. Its totient is φ = 115810230.

The previous prime is 115810183. The next prime is 115810243. The reversal of 115810231 is 132018511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115810231 is a prime.

It is a super-2 number, since 2×115810231² = 26824019208546722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115810291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57905115 + 57905116.

It is an arithmetic number, because the mean of its divisors is an integer number (57905116).

Almost surely, 2^115810231 is an apocalyptic number.

115810231 is a deficient number, since it is larger than the sum of its proper divisors (1).

115810231 is an equidigital number, since it uses as much as digits as its factorization.

115810231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 115810231 is about 10761.5162035840. The cubic root of 115810231 is about 487.4338017498.

Adding to 115810231 its reverse (132018511), we get a palindrome (247828742).

The spelling of 115810231 in words is "one hundred fifteen million, eight hundred ten thousand, two hundred thirty-one".