115913580 has 48 divisors (see below), whose sum is σ = 335754720. Its totient is φ = 29843968.

The previous prime is 115913569. The next prime is 115913587. The reversal of 115913580 is 85319511.

It is not an unprimeable number, because it can be changed into a prime (115913587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31569 + ... + 35048.

It is an arithmetic number, because the mean of its divisors is an integer number (6994890).

Almost surely, 2^115913580 is an apocalyptic number.

115913580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115913580 is an abundant number, since it is smaller than the sum of its proper divisors (219841140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115913580 is a wasteful number, since it uses less digits than its factorization.

115913580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66658 (or 66656 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 115913580 is about 10766.3169189839. The cubic root of 115913580 is about 487.5787538778.

The spelling of 115913580 in words is "one hundred fifteen million, nine hundred thirteen thousand, five hundred eighty".