198099 has 32 divisors (see below), whose sum is σ = 345600. Its totient is φ = 110880.

The previous prime is 198097. The next prime is 198109. The reversal of 198099 is 990891.

198099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198099 - 2¹ = 198097 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198099.

It is not an unprimeable number, because it can be changed into a prime (198091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6817 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2¹⁹⁸⁰⁹⁹ is an apocalyptic number.

198099 is a deficient number, since it is larger than the sum of its proper divisors (147501).

198099 is a wasteful number, since it uses less digits than its factorization.

198099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 198099 is about 445.0831383011. The cubic root of 198099 is about 58.2944793417.

Adding to 198099 its sum of digits (36), we get a triangular number (198135 = T₆₂₉).

It can be divided in two parts, 19 and 8099, that added together give a palindrome (8118).

The spelling of 198099 in words is "one hundred ninety-eight thousand, ninety-nine".