115800099 has 4 divisors (see below), whose sum is σ = 154400136. Its totient is φ = 77200064.

The previous prime is 115800089. The next prime is 115800133. The reversal of 115800099 is 990008511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990008511 = 3 ⋅330002837.

It is a cyclic number.

It is not a de Polignac number, because 115800099 - 2⁸ = 115799843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115800029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19300014 + ... + 19300019.

It is an arithmetic number, because the mean of its divisors is an integer number (38600034).

Almost surely, 2^115800099 is an apocalyptic number.

115800099 is a deficient number, since it is larger than the sum of its proper divisors (38600037).

115800099 is an equidigital number, since it uses as much as digits as its factorization.

115800099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38600036.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 115800099 is about 10761.0454417775. The cubic root of 115800099 is about 487.4195864735.

The spelling of 115800099 in words is "one hundred fifteen million, eight hundred thousand, ninety-nine".