115117580 has 24 divisors (see below), whose sum is σ = 254471280. Its totient is φ = 43623360.

The previous prime is 115117577. The next prime is 115117589. The reversal of 115117580 is 85711511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (115117589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151091 + ... + 151850.

It is an arithmetic number, because the mean of its divisors is an integer number (10602970).

Almost surely, 2^115117580 is an apocalyptic number.

115117580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115117580 is an abundant number, since it is smaller than the sum of its proper divisors (139353700).

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

115117580 is a wasteful number, since it uses less digits than its factorization.

115117580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302969 (or 302967 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 29.

The square root of 115117580 is about 10729.2860899503. The cubic root of 115117580 is about 486.4600914313.

Subtracting from 115117580 its sum of digits (29), we obtain a triangular number (115117551 = T₁₅₁₇₃).

It can be divided in two parts, 11511 and 7580, that added together give a palindrome (19091).

The spelling of 115117580 in words is "one hundred fifteen million, one hundred seventeen thousand, five hundred eighty".