198264059 has 4 divisors (see below), whose sum is σ = 226587504. Its totient is φ = 169940616.

The previous prime is 198264049. The next prime is 198264083. The reversal of 198264059 is 950462891.

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

It is a cyclic number.

It is not a de Polignac number, because 198264059 - 2²⁰ = 197215483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198264049) 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, 14161712 + ... + 14161725.

It is an arithmetic number, because the mean of its divisors is an integer number (56646876).

Almost surely, 2^198264059 is an apocalyptic number.

198264059 is a deficient number, since it is larger than the sum of its proper divisors (28323445).

198264059 is an equidigital number, since it uses as much as digits as its factorization.

198264059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28323444.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 198264059 is about 14080.6270812063. The cubic root of 198264059 is about 583.1066545290.

The spelling of 198264059 in words is "one hundred ninety-eight million, two hundred sixty-four thousand, fifty-nine".