198673183 has 4 divisors (see below), whose sum is σ = 202900320. Its totient is φ = 194446048.

The previous prime is 198673133. The next prime is 198673219. The reversal of 198673183 is 381376891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381376891 = 7 ⋅54482413.

It is a cyclic number.

It is not a de Polignac number, because 198673183 - 2⁹ = 198672671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198673133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113498 + ... + 2113591.

It is an arithmetic number, because the mean of its divisors is an integer number (50725080).

Almost surely, 2^198673183 is an apocalyptic number.

198673183 is a deficient number, since it is larger than the sum of its proper divisors (4227137).

198673183 is an equidigital number, since it uses as much as digits as its factorization.

198673183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227136.

The product of its digits is 217728, while the sum is 46.

The square root of 198673183 is about 14095.1474983414. The cubic root of 198673183 is about 583.5074651482.

The spelling of 198673183 in words is "one hundred ninety-eight million, six hundred seventy-three thousand, one hundred eighty-three".