118551899 has 2 divisors, whose sum is σ = 118551900. Its totient is φ = 118551898.

The previous prime is 118551893. The next prime is 118551941. The reversal of 118551899 is 998155811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118551899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118551893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59275949 + 59275950.

It is an arithmetic number, because the mean of its divisors is an integer number (59275950).

Almost surely, 2^118551899 is an apocalyptic number.

118551899 is a deficient number, since it is larger than the sum of its proper divisors (1).

118551899 is an equidigital number, since it uses as much as digits as its factorization.

118551899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 47.

The square root of 118551899 is about 10888.1540676094. The cubic root of 118551899 is about 491.2503110194.

The spelling of 118551899 in words is "one hundred eighteen million, five hundred fifty-one thousand, eight hundred ninety-nine".