198466459 has 4 divisors (see below), whose sum is σ = 205310160. Its totient is φ = 191622760.

The previous prime is 198466439. The next prime is 198466507. The reversal of 198466459 is 954664891.

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 198466459 - 2¹⁷ = 198335387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198466439) 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, 3421807 + ... + 3421864.

It is an arithmetic number, because the mean of its divisors is an integer number (51327540).

Almost surely, 2^198466459 is an apocalyptic number.

198466459 is a deficient number, since it is larger than the sum of its proper divisors (6843701).

198466459 is an equidigital number, since it uses as much as digits as its factorization.

198466459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843700.

The product of its digits is 1866240, while the sum is 52.

The square root of 198466459 is about 14087.8124277689. The cubic root of 198466459 is about 583.3050106158.

The spelling of 198466459 in words is "one hundred ninety-eight million, four hundred sixty-six thousand, four hundred fifty-nine".