115531800 has 48 divisors (see below), whose sum is σ = 358150440. Its totient is φ = 30808320.

The previous prime is 115531789. The next prime is 115531811. The reversal of 115531800 is 8135511.

It is an interprime number because it is at equal distance from previous prime (115531789) and next prime (115531811).

It is a super-2 number, since 2×115531800² = 26695193622480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95677 + ... + 96876.

Almost surely, 2^115531800 is an apocalyptic number.

115531800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115531800 is an abundant number, since it is smaller than the sum of its proper divisors (242618640).

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

115531800 is a wasteful number, since it uses less digits than its factorization.

115531800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192572 (or 192563 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 115531800 is about 10748.5719981772. The cubic root of 115531800 is about 487.0428587719.

The spelling of 115531800 in words is "one hundred fifteen million, five hundred thirty-one thousand, eight hundred".