198830131 has 2 divisors, whose sum is σ = 198830132. Its totient is φ = 198830130.

The previous prime is 198830081. The next prime is 198830141. The reversal of 198830131 is 131038891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198830131 - 2⁹ = 198829619 is a prime.

It is a super-2 number, since 2×198830131² = 79066841986954322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (198830141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99415065 + 99415066.

It is an arithmetic number, because the mean of its divisors is an integer number (99415066).

Almost surely, 2^198830131 is an apocalyptic number.

198830131 is a deficient number, since it is larger than the sum of its proper divisors (1).

198830131 is an equidigital number, since it uses as much as digits as its factorization.

198830131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 198830131 is about 14100.7138471781. The cubic root of 198830131 is about 583.6610779363.

The spelling of 198830131 in words is "one hundred ninety-eight million, eight hundred thirty thousand, one hundred thirty-one".