198875459 has 2 divisors, whose sum is σ = 198875460. Its totient is φ = 198875458.

The previous prime is 198875449. The next prime is 198875477. The reversal of 198875459 is 954578891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198875459 - 2⁸ = 198875203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198875429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99437729 + 99437730.

It is an arithmetic number, because the mean of its divisors is an integer number (99437730).

Almost surely, 2^198875459 is an apocalyptic number.

198875459 is a deficient number, since it is larger than the sum of its proper divisors (1).

198875459 is an equidigital number, since it uses as much as digits as its factorization.

198875459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 56.

The square root of 198875459 is about 14102.3210500967. The cubic root of 198875459 is about 583.7054276517.

The spelling of 198875459 in words is "one hundred ninety-eight million, eight hundred seventy-five thousand, four hundred fifty-nine".