198495331 has 2 divisors, whose sum is σ = 198495332. Its totient is φ = 198495330.

The previous prime is 198495301. The next prime is 198495361. The reversal of 198495331 is 133594891.

It is a balanced prime because it is at equal distance from previous prime (198495301) and next prime (198495361).

It is a cyclic number.

It is not a de Polignac number, because 198495331 - 2⁷ = 198495203 is a prime.

It is a super-2 number, since 2×198495331² = 78800792857599122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (198495301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99247665 + 99247666.

It is an arithmetic number, because the mean of its divisors is an integer number (99247666).

Almost surely, 2^198495331 is an apocalyptic number.

198495331 is a deficient number, since it is larger than the sum of its proper divisors (1).

198495331 is an equidigital number, since it uses as much as digits as its factorization.

198495331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 198495331 is about 14088.8371060212. The cubic root of 198495331 is about 583.3332947664. Note that the first 3 decimals are identical.

The spelling of 198495331 in words is "one hundred ninety-eight million, four hundred ninety-five thousand, three hundred thirty-one".