115993188 has 48 divisors (see below), whose sum is σ = 307728960. Its totient is φ = 37763712.

The previous prime is 115993183. The next prime is 115993211. The reversal of 115993188 is 881399511.

It is not an unprimeable number, because it can be changed into a prime (115993181) 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, 7845 + ... + 17132.

It is an arithmetic number, because the mean of its divisors is an integer number (6411020).

Almost surely, 2^115993188 is an apocalyptic number.

115993188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115993188 is an abundant number, since it is smaller than the sum of its proper divisors (191735772).

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

115993188 is a wasteful number, since it uses less digits than its factorization.

115993188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25033 (or 25025 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The square root of 115993188 is about 10770.0133704652. The cubic root of 115993188 is about 487.6903493351.

The spelling of 115993188 in words is "one hundred fifteen million, nine hundred ninety-three thousand, one hundred eighty-eight".