118505198 has 32 divisors (see below), whose sum is σ = 216126144. Its totient is φ = 47572992.

The previous prime is 118505197. The next prime is 118505209. The reversal of 118505198 is 891505811.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118505197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54386 + ... + 56522.

It is an arithmetic number, because the mean of its divisors is an integer number (6753942).

Almost surely, 2^118505198 is an apocalyptic number.

118505198 is a deficient number, since it is larger than the sum of its proper divisors (97620946).

118505198 is a wasteful number, since it uses less digits than its factorization.

118505198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 14400, while the sum is 38.

The square root of 118505198 is about 10886.0092779678. The cubic root of 118505198 is about 491.1857966756.

The spelling of 118505198 in words is "one hundred eighteen million, five hundred five thousand, one hundred ninety-eight".