198322023 has 4 divisors (see below), whose sum is σ = 264429368. Its totient is φ = 132214680.

The previous prime is 198322001. The next prime is 198322037. The reversal of 198322023 is 320223891.

It is a happy number.

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

It is not a de Polignac number, because 198322023 - 2⁹ = 198321511 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 (198322073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33053668 + ... + 33053673.

It is an arithmetic number, because the mean of its divisors is an integer number (66107342).

Almost surely, 2^198322023 is an apocalyptic number.

198322023 is a deficient number, since it is larger than the sum of its proper divisors (66107345).

198322023 is an equidigital number, since it uses as much as digits as its factorization.

198322023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66107344.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 198322023 is about 14082.6852198009. The cubic root of 198322023 is about 583.1634742084.

The spelling of 198322023 in words is "one hundred ninety-eight million, three hundred twenty-two thousand, twenty-three".