115399199 has 2 divisors, whose sum is σ = 115399200. Its totient is φ = 115399198.

The previous prime is 115399187. The next prime is 115399201. The reversal of 115399199 is 991993511.

It is a strong prime.

It is an emirp because it is prime and its reverse (991993511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115399199 - 2²⁰ = 114350623 is a prime.

Together with 115399201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (114399199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57699599 + 57699600.

It is an arithmetic number, because the mean of its divisors is an integer number (57699600).

Almost surely, 2^115399199 is an apocalyptic number.

115399199 is a deficient number, since it is larger than the sum of its proper divisors (1).

115399199 is an equidigital number, since it uses as much as digits as its factorization.

115399199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98415, while the sum is 47.

The square root of 115399199 is about 10742.4019194964. The cubic root of 115399199 is about 486.8564538344.

The spelling of 115399199 in words is "one hundred fifteen million, three hundred ninety-nine thousand, one hundred ninety-nine".