118715899 has 4 divisors (see below), whose sum is σ = 119512800. Its totient is φ = 117919000.

The previous prime is 118715897. The next prime is 118715911. The reversal of 118715899 is 998517811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998517811 = 19 ⋅52553569.

It is a cyclic number.

It is not a de Polignac number, because 118715899 - 2¹ = 118715897 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118715897) 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, 398227 + ... + 398524.

It is an arithmetic number, because the mean of its divisors is an integer number (29878200).

Almost surely, 2^118715899 is an apocalyptic number.

118715899 is a deficient number, since it is larger than the sum of its proper divisors (796901).

118715899 is an equidigital number, since it uses as much as digits as its factorization.

118715899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796900.

The product of its digits is 181440, while the sum is 49.

The square root of 118715899 is about 10895.6825853179. The cubic root of 118715899 is about 491.4767320498.

The spelling of 118715899 in words is "one hundred eighteen million, seven hundred fifteen thousand, eight hundred ninety-nine".