115977585 has 8 divisors (see below), whose sum is σ = 185564160. Its totient is φ = 61854704.

The previous prime is 115977581. The next prime is 115977599. The reversal of 115977585 is 585779511.

It is a happy number.

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 115977585 - 2² = 115977581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115977581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3865905 + ... + 3865934.

It is an arithmetic number, because the mean of its divisors is an integer number (23195520).

Almost surely, 2^115977585 is an apocalyptic number.

115977585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115977585 is a deficient number, since it is larger than the sum of its proper divisors (69586575).

115977585 is an equidigital number, since it uses as much as digits as its factorization.

115977585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731847.

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

The square root of 115977585 is about 10769.2889737438. The cubic root of 115977585 is about 487.6684808850.

The spelling of 115977585 in words is "one hundred fifteen million, nine hundred seventy-seven thousand, five hundred eighty-five".