198392195 has 4 divisors (see below), whose sum is σ = 238070640. Its totient is φ = 158713752.

The previous prime is 198392189. The next prime is 198392213. The reversal of 198392195 is 591293891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198392195 is a prime.

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, 19839215 + ... + 19839224.

It is an arithmetic number, because the mean of its divisors is an integer number (59517660).

Almost surely, 2^198392195 is an apocalyptic number.

198392195 is a deficient number, since it is larger than the sum of its proper divisors (39678445).

198392195 is an equidigital number, since it uses as much as digits as its factorization.

198392195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39678444.

The product of its digits is 174960, while the sum is 47.

The square root of 198392195 is about 14085.1764277200. The cubic root of 198392195 is about 583.2322460661.

The spelling of 198392195 in words is "one hundred ninety-eight million, three hundred ninety-two thousand, one hundred ninety-five".