115942231 has 2 divisors, whose sum is σ = 115942232. Its totient is φ = 115942230.

The previous prime is 115942223. The next prime is 115942247. The reversal of 115942231 is 132249511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115942231 - 2³ = 115942223 is a prime.

It is a super-2 number, since 2×115942231² = 26885201858514722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115942231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115942291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57971115 + 57971116.

It is an arithmetic number, because the mean of its divisors is an integer number (57971116).

Almost surely, 2^115942231 is an apocalyptic number.

115942231 is a deficient number, since it is larger than the sum of its proper divisors (1).

115942231 is an equidigital number, since it uses as much as digits as its factorization.

115942231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 115942231 is about 10767.6474217909. The cubic root of 115942231 is about 487.6189230799.

The spelling of 115942231 in words is "one hundred fifteen million, nine hundred forty-two thousand, two hundred thirty-one".