115557879 has 8 divisors (see below), whose sum is σ = 154426752. Its totient is φ = 76863800.

The previous prime is 115557877. The next prime is 115557881. The reversal of 115557879 is 978755511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115557877) and next prime (115557881).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115557879 - 2¹ = 115557877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115557877) 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 in 7 ways as a sum of consecutive naturals, for example, 42147 + ... + 44804.

It is an arithmetic number, because the mean of its divisors is an integer number (19303344).

Almost surely, 2^115557879 is an apocalyptic number.

115557879 is a deficient number, since it is larger than the sum of its proper divisors (38868873).

115557879 is an equidigital number, since it uses as much as digits as its factorization.

115557879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87397.

The product of its digits is 441000, while the sum is 48.

The square root of 115557879 is about 10749.7850676188. The cubic root of 115557879 is about 487.0795027526.

The spelling of 115557879 in words is "one hundred fifteen million, five hundred fifty-seven thousand, eight hundred seventy-nine".