198495107 has 2 divisors, whose sum is σ = 198495108. Its totient is φ = 198495106.

The previous prime is 198495091. The next prime is 198495113. The reversal of 198495107 is 701594891.

It is a strong prime.

It is an emirp because it is prime and its reverse (701594891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198495107 - 2⁴ = 198495091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198495007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99247553 + 99247554.

It is an arithmetic number, because the mean of its divisors is an integer number (99247554).

Almost surely, 2^198495107 is an apocalyptic number.

198495107 is a deficient number, since it is larger than the sum of its proper divisors (1).

198495107 is an equidigital number, since it uses as much as digits as its factorization.

198495107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 198495107 is about 14088.8291564629. The cubic root of 198495107 is about 583.3330753378. Note that the first 3 decimals are identical.

The spelling of 198495107 in words is "one hundred ninety-eight million, four hundred ninety-five thousand, one hundred seven".