198495499 has 2 divisors, whose sum is σ = 198495500. Its totient is φ = 198495498.

The previous prime is 198495457. The next prime is 198495551. The reversal of 198495499 is 994594891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198495499 - 2⁷ = 198495371 is a prime.

It is not a weakly prime, because it can be changed into another prime (198495599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99247749 + 99247750.

It is an arithmetic number, because the mean of its divisors is an integer number (99247750).

Almost surely, 2^198495499 is an apocalyptic number.

198495499 is a deficient number, since it is larger than the sum of its proper divisors (1).

198495499 is an equidigital number, since it uses as much as digits as its factorization.

198495499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 58.

The square root of 198495499 is about 14088.8430681870. The cubic root of 198495499 is about 583.3334593378. Note that the first 3 decimals are identical.

The spelling of 198495499 in words is "one hundred ninety-eight million, four hundred ninety-five thousand, four hundred ninety-nine".