198099485 has 4 divisors (see below), whose sum is σ = 237719388. Its totient is φ = 158479584.

The previous prime is 198099469. The next prime is 198099497. The reversal of 198099485 is 584990891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584990891 = 251 ⋅2330641.

It can be written as a sum of positive squares in 2 ways, for example, as 132457081 + 65642404 = 11509^2 + 8102^2 .

It is a cyclic number.

It is not a de Polignac number, because 198099485 - 2⁴ = 198099469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19809944 + ... + 19809953.

It is an arithmetic number, because the mean of its divisors is an integer number (59429847).

Almost surely, 2^198099485 is an apocalyptic number.

It is an amenable number.

198099485 is a deficient number, since it is larger than the sum of its proper divisors (39619903).

198099485 is an equidigital number, since it uses as much as digits as its factorization.

198099485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39619902.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 198099485 is about 14074.7818810808. The cubic root of 198099485 is about 582.9452691527.

The spelling of 198099485 in words is "one hundred ninety-eight million, ninety-nine thousand, four hundred eighty-five".