118799999 has 4 divisors (see below), whose sum is σ = 118884336. Its totient is φ = 118715664.

The previous prime is 118799987. The next prime is 118800043. The reversal of 118799999 is 999997811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118799999 - 2⁸ = 118799743 is a prime.

It is a super-2 number, since 2×118799999² = 28226879524800002, which contains 22 as substring.

It is a Duffinian number.

118799999 is a modest number, since divided by 99999 gives 1187 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118799909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40019 + ... + 42884.

It is an arithmetic number, because the mean of its divisors is an integer number (29721084).

Almost surely, 2^118799999 is an apocalyptic number.

118799999 is a deficient number, since it is larger than the sum of its proper divisors (84337).

118799999 is an equidigital number, since it uses as much as digits as its factorization.

118799999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84336.

The product of its digits is 3306744, while the sum is 62.

The square root of 118799999 is about 10899.5412288775. The cubic root of 118799999 is about 491.5927609811.

The spelling of 118799999 in words is "one hundred eighteen million, seven hundred ninety-nine thousand, nine hundred ninety-nine".