118255231 has 2 divisors, whose sum is σ = 118255232. Its totient is φ = 118255230.

The previous prime is 118255217. The next prime is 118255253. The reversal of 118255231 is 132552811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118255231 - 2⁵ = 118255199 is a prime.

It is a super-2 number, since 2×118255231² = 27968599317726722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118255231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118255261) 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, 59127615 + 59127616.

It is an arithmetic number, because the mean of its divisors is an integer number (59127616).

Almost surely, 2^118255231 is an apocalyptic number.

118255231 is a deficient number, since it is larger than the sum of its proper divisors (1).

118255231 is an equidigital number, since it uses as much as digits as its factorization.

118255231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 28.

The square root of 118255231 is about 10874.5221044421. The cubic root of 118255231 is about 490.8401953248.

The spelling of 118255231 in words is "one hundred eighteen million, two hundred fifty-five thousand, two hundred thirty-one".