118891099 has 2 divisors, whose sum is σ = 118891100. Its totient is φ = 118891098.

The previous prime is 118891063. The next prime is 118891187. The reversal of 118891099 is 990198811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118891099 - 2¹⁷ = 118760027 is a prime.

It is not a weakly prime, because it can be changed into another prime (118891049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59445549 + 59445550.

It is an arithmetic number, because the mean of its divisors is an integer number (59445550).

Almost surely, 2^118891099 is an apocalyptic number.

118891099 is a deficient number, since it is larger than the sum of its proper divisors (1).

118891099 is an equidigital number, since it uses as much as digits as its factorization.

118891099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 46.

The square root of 118891099 is about 10903.7195029953. The cubic root of 118891099 is about 491.7183857241.

The spelling of 118891099 in words is "one hundred eighteen million, eight hundred ninety-one thousand, ninety-nine".