115900 has 36 divisors (see below), whose sum is σ = 269080. Its totient is φ = 43200.

The previous prime is 115891. The next prime is 115901. The reversal of 115900 is 9511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115901) by changing a digit.

115900 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870 + ... + 1930.

2¹¹⁵⁹⁰⁰ is an apocalyptic number.

115900 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 115900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134540).

115900 is an abundant number, since it is smaller than the sum of its proper divisors (153180).

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

115900 is a wasteful number, since it uses less digits than its factorization.

115900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 115900 is about 340.4408906110. The cubic root of 115900 is about 48.7559712169.

The spelling of 115900 in words is "one hundred fifteen thousand, nine hundred".