115555199 has 2 divisors, whose sum is σ = 115555200. Its totient is φ = 115555198.

The previous prime is 115555189. The next prime is 115555241. The reversal of 115555199 is 991555511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115555199 - 2⁴ = 115555183 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 (115555159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57777599 + 57777600.

It is an arithmetic number, because the mean of its divisors is an integer number (57777600).

Almost surely, 2^115555199 is an apocalyptic number.

115555199 is a deficient number, since it is larger than the sum of its proper divisors (1).

115555199 is an equidigital number, since it uses as much as digits as its factorization.

115555199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50625, while the sum is 41.

The square root of 115555199 is about 10749.6604132410. The cubic root of 115555199 is about 487.0757372999.

The spelling of 115555199 in words is "one hundred fifteen million, five hundred fifty-five thousand, one hundred ninety-nine".