198266 has 4 divisors (see below), whose sum is σ = 297402. Its totient is φ = 99132.

The previous prime is 198259. The next prime is 198277. The reversal of 198266 is 662891.

198266 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 177241 + 21025 = 421^2 + 145^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49565 + ... + 49568.

2¹⁹⁸²⁶⁶ is an apocalyptic number.

198266 is a deficient number, since it is larger than the sum of its proper divisors (99136).

198266 is an equidigital number, since it uses as much as digits as its factorization.

198266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99135.

The product of its digits is 5184, while the sum is 32.

The square root of 198266 is about 445.2707041789. The cubic root of 198266 is about 58.3108557389.

It can be divided in two parts, 1982 and 66, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 198266 in words is "one hundred ninety-eight thousand, two hundred sixty-six".