115957500 has 60 divisors (see below), whose sum is σ = 338123016. Its totient is φ = 30920000.

The previous prime is 115957487. The next prime is 115957529. The reversal of 115957500 is 5759511.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×115957500² = 26892283612500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 231 + ... + 15230.

Almost surely, 2^115957500 is an apocalyptic number.

115957500 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 115957500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169061508).

115957500 is an abundant number, since it is smaller than the sum of its proper divisors (222165516).

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

115957500 is a wasteful number, since it uses less digits than its factorization.

115957500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15488 (or 15471 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 33.

The square root of 115957500 is about 10768.3564205500. The cubic root of 115957500 is about 487.6403277813.

The spelling of 115957500 in words is "one hundred fifteen million, nine hundred fifty-seven thousand, five hundred".