198192297 has 16 divisors (see below), whose sum is σ = 268107840. Its totient is φ = 130210752.

The previous prime is 198192229. The next prime is 198192317. The reversal of 198192297 is 792291891.

It is not a de Polignac number, because 198192297 - 2⁸ = 198192041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198192697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137979 + ... + 139407.

It is an arithmetic number, because the mean of its divisors is an integer number (16756740).

Almost surely, 2^198192297 is an apocalyptic number.

It is an amenable number.

198192297 is a deficient number, since it is larger than the sum of its proper divisors (69915543).

198192297 is a wasteful number, since it uses less digits than its factorization.

198192297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its digits is 163296, while the sum is 48.

The square root of 198192297 is about 14078.0785975928. The cubic root of 198192297 is about 583.0362939039.

The spelling of 198192297 in words is "one hundred ninety-eight million, one hundred ninety-two thousand, two hundred ninety-seven".