115705999 has 2 divisors, whose sum is σ = 115706000. Its totient is φ = 115705998.

The previous prime is 115705979. The next prime is 115706083. The reversal of 115705999 is 999507511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115705999 - 2⁹ = 115705487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115705979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57852999 + 57853000.

It is an arithmetic number, because the mean of its divisors is an integer number (57853000).

Almost surely, 2^115705999 is an apocalyptic number.

115705999 is a deficient number, since it is larger than the sum of its proper divisors (1).

115705999 is an equidigital number, since it uses as much as digits as its factorization.

115705999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127575, while the sum is 46.

The square root of 115705999 is about 10756.6723014137. The cubic root of 115705999 is about 487.2875237987.

The spelling of 115705999 in words is "one hundred fifteen million, seven hundred five thousand, nine hundred ninety-nine".