198441227 has 4 divisors (see below), whose sum is σ = 198482016. Its totient is φ = 198400440.

The previous prime is 198441211. The next prime is 198441239. The reversal of 198441227 is 722144891.

It is a happy number.

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 198441227 - 2⁴ = 198441211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198441427) 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, 11924 + ... + 23217.

It is an arithmetic number, because the mean of its divisors is an integer number (49620504).

Almost surely, 2^198441227 is an apocalyptic number.

198441227 is a deficient number, since it is larger than the sum of its proper divisors (40789).

198441227 is an equidigital number, since it uses as much as digits as its factorization.

198441227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40788.

The product of its digits is 32256, while the sum is 38.

The square root of 198441227 is about 14086.9168734681. The cubic root of 198441227 is about 583.2802901066.

The spelling of 198441227 in words is "one hundred ninety-eight million, four hundred forty-one thousand, two hundred twenty-seven".