115912188 has 192 divisors, whose sum is σ = 377395200. Its totient is φ = 29998080.

The previous prime is 115912177. The next prime is 115912189. The reversal of 115912188 is 881219511.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115912189) 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 63 ways as a sum of consecutive naturals, for example, 372553 + ... + 372863.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^115912188 is an apocalyptic number.

115912188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115912188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188697600).

115912188 is an abundant number, since it is smaller than the sum of its proper divisors (261483012).

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

115912188 is a wasteful number, since it uses less digits than its factorization.

115912188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 369 counting only the distinct ones).

The product of its digits is 5760, while the sum is 36.

The square root of 115912188 is about 10766.2522727270. The cubic root of 115912188 is about 487.5768021009.

The spelling of 115912188 in words is "one hundred fifteen million, nine hundred twelve thousand, one hundred eighty-eight".