115391760 has 160 divisors (see below), whose sum is σ = 394796160. Its totient is φ = 27648000.

The previous prime is 115391723. The next prime is 115391761. The reversal of 115391760 is 67193511.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (115391761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287560 + ... + 287960.

It is an arithmetic number, because the mean of its divisors is an integer number (2467476).

Almost surely, 2^115391760 is an apocalyptic number.

115391760 is a gapful number since it is divisible by the number (10) 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 115391760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197398080).

115391760 is an abundant number, since it is smaller than the sum of its proper divisors (279404400).

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

115391760 is a wasteful number, since it uses less digits than its factorization.

115391760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 115391760 is about 10742.0556691911. The cubic root of 115391760 is about 486.8459921702.

The spelling of 115391760 in words is "one hundred fifteen million, three hundred ninety-one thousand, seven hundred sixty".