198935195 has 4 divisors (see below), whose sum is σ = 238722240. Its totient is φ = 159148152.

The previous prime is 198935141. The next prime is 198935227. The reversal of 198935195 is 591539891.

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: 591539891 = 1259 ⋅469849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198935195 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, 19893515 + ... + 19893524.

It is an arithmetic number, because the mean of its divisors is an integer number (59680560).

Almost surely, 2^198935195 is an apocalyptic number.

198935195 is a deficient number, since it is larger than the sum of its proper divisors (39787045).

198935195 is an equidigital number, since it uses as much as digits as its factorization.

198935195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39787044.

The product of its digits is 437400, while the sum is 50.

The square root of 198935195 is about 14104.4388403084. The cubic root of 198935195 is about 583.7638641175.

The spelling of 198935195 in words is "one hundred ninety-eight million, nine hundred thirty-five thousand, one hundred ninety-five".