115558879 has 2 divisors, whose sum is σ = 115558880. Its totient is φ = 115558878.

The previous prime is 115558873. The next prime is 115558897. The reversal of 115558879 is 978855511.

Together with next prime (115558897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115558879 - 2²¹ = 113461727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115558873) 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, 57779439 + 57779440.

It is an arithmetic number, because the mean of its divisors is an integer number (57779440).

Almost surely, 2^115558879 is an apocalyptic number.

115558879 is a deficient number, since it is larger than the sum of its proper divisors (1).

115558879 is an equidigital number, since it uses as much as digits as its factorization.

115558879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 49.

The square root of 115558879 is about 10749.8315800760. The cubic root of 115558879 is about 487.0809077573.

The spelling of 115558879 in words is "one hundred fifteen million, five hundred fifty-eight thousand, eight hundred seventy-nine".