115099 has 2 divisors, whose sum is σ = 115100. Its totient is φ = 115098.

The previous prime is 115079. The next prime is 115117. The reversal of 115099 is 990511.

It is a strong prime.

It is an emirp because it is prime and its reverse (990511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115099 - 2⁵ = 115067 is a prime.

It is not a weakly prime, because it can be changed into another prime (115019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57549 + 57550.

It is an arithmetic number, because the mean of its divisors is an integer number (57550).

2¹¹⁵⁰⁹⁹ is an apocalyptic number.

115099 is a deficient number, since it is larger than the sum of its proper divisors (1).

115099 is an equidigital number, since it uses as much as digits as its factorization.

115099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 115099 is about 339.2624352916. The cubic root of 115099 is about 48.6433918438.

The spelling of 115099 in words is "one hundred fifteen thousand, ninety-nine".