115157700 has 216 divisors, whose sum is σ = 428430912. Its totient is φ = 26282880.

The previous prime is 115157699. The next prime is 115157701. The reversal of 115157700 is 7751511.

It is an interprime number because it is at equal distance from previous prime (115157699) and next prime (115157701).

It is a super-2 number, since 2×115157700² = 26522591738580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115157701) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 169762 + ... + 170438.

Almost surely, 2^115157700 is an apocalyptic number.

115157700 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 115157700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214215456).

115157700 is an abundant number, since it is smaller than the sum of its proper divisors (313273212).

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

115157700 is a wasteful number, since it uses less digits than its factorization.

115157700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The square root of 115157700 is about 10731.1555761717. The cubic root of 115157700 is about 486.5165974606.

The spelling of 115157700 in words is "one hundred fifteen million, one hundred fifty-seven thousand, seven hundred".