115552231 has 2 divisors, whose sum is σ = 115552232. Its totient is φ = 115552230.

The previous prime is 115552219. The next prime is 115552237. The reversal of 115552231 is 132255511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115552231 - 2²¹ = 113455079 is a prime.

It is a super-2 number, since 2×115552231² = 26704636178154722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115552196 and 115552205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115552237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57776115 + 57776116.

It is an arithmetic number, because the mean of its divisors is an integer number (57776116).

Almost surely, 2^115552231 is an apocalyptic number.

115552231 is a deficient number, since it is larger than the sum of its proper divisors (1).

115552231 is an equidigital number, since it uses as much as digits as its factorization.

115552231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500, while the sum is 25.

The square root of 115552231 is about 10749.5223614819. The cubic root of 115552231 is about 487.0715671337.

The spelling of 115552231 in words is "one hundred fifteen million, five hundred fifty-two thousand, two hundred thirty-one".