115881800 has 24 divisors (see below), whose sum is σ = 269425650. Its totient is φ = 46352640.

The previous prime is 115881791. The next prime is 115881803. The reversal of 115881800 is 8188511.

It can be written as a sum of positive squares in 3 ways, for example, as 91891396 + 23990404 = 9586^2 + 4898^2 .

It is not an unprimeable number, because it can be changed into a prime (115881803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289505 + ... + 289904.

Almost surely, 2^115881800 is an apocalyptic number.

115881800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115881800 is an abundant number, since it is smaller than the sum of its proper divisors (153543850).

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

115881800 is a wasteful number, since it uses less digits than its factorization.

115881800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579425 (or 579416 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 32.

The square root of 115881800 is about 10764.8409184716. The cubic root of 115881800 is about 487.5341900194.

The spelling of 115881800 in words is "one hundred fifteen million, eight hundred eighty-one thousand, eight hundred".