115228591 has 2 divisors, whose sum is σ = 115228592. Its totient is φ = 115228590.

The previous prime is 115228541. The next prime is 115228609. The reversal of 115228591 is 195822511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115228591 - 2⁹ = 115228079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115228511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57614295 + 57614296.

It is an arithmetic number, because the mean of its divisors is an integer number (57614296).

Almost surely, 2^115228591 is an apocalyptic number.

115228591 is a deficient number, since it is larger than the sum of its proper divisors (1).

115228591 is an equidigital number, since it uses as much as digits as its factorization.

115228591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 34.

The square root of 115228591 is about 10734.4581139432. The cubic root of 115228591 is about 486.6164100748.

The spelling of 115228591 in words is "one hundred fifteen million, two hundred twenty-eight thousand, five hundred ninety-one".