198241 has 2 divisors, whose sum is σ = 198242. Its totient is φ = 198240.

The previous prime is 198223. The next prime is 198251. The reversal of 198241 is 142891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108241 + 90000 = 329^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 198241 - 2¹¹ = 196193 is a prime.

It is not a weakly prime, because it can be changed into another prime (198221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99120 + 99121.

It is an arithmetic number, because the mean of its divisors is an integer number (99121).

2¹⁹⁸²⁴¹ is an apocalyptic number.

It is an amenable number.

198241 is a deficient number, since it is larger than the sum of its proper divisors (1).

198241 is an equidigital number, since it uses as much as digits as its factorization.

198241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 198241 is about 445.2426304836. The cubic root of 198241 is about 58.3084047679.

The spelling of 198241 in words is "one hundred ninety-eight thousand, two hundred forty-one".