118899999 has 6 divisors (see below), whose sum is σ = 171744456. Its totient is φ = 79266660.

The previous prime is 118899953. The next prime is 118900013. The reversal of 118899999 is 999998811.

It is not a de Polignac number, because 118899999 - 2⁸ = 118899743 is a prime.

118899999 is a modest number, since divided by 99999 gives 1188 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118899499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6605547 + ... + 6605564.

It is an arithmetic number, because the mean of its divisors is an integer number (28624076).

Almost surely, 2^118899999 is an apocalyptic number.

118899999 is a deficient number, since it is larger than the sum of its proper divisors (52844457).

118899999 is a wasteful number, since it uses less digits than its factorization.

118899999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211117 (or 13211114 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 63.

The square root of 118899999 is about 10904.1276129730. The cubic root of 118899999 is about 491.7306551721.

The spelling of 118899999 in words is "one hundred eighteen million, eight hundred ninety-nine thousand, nine hundred ninety-nine".