198017059 has 2 divisors, whose sum is σ = 198017060. Its totient is φ = 198017058.

The previous prime is 198017033. The next prime is 198017101. The reversal of 198017059 is 950710891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198017059 - 2⁹ = 198016547 is a prime.

It is not a weakly prime, because it can be changed into another prime (198017009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99008529 + 99008530.

It is an arithmetic number, because the mean of its divisors is an integer number (99008530).

Almost surely, 2^198017059 is an apocalyptic number.

198017059 is a deficient number, since it is larger than the sum of its proper divisors (1).

198017059 is an equidigital number, since it uses as much as digits as its factorization.

198017059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 198017059 is about 14071.8534315846. The cubic root of 198017059 is about 582.8644065623.

The spelling of 198017059 in words is "one hundred ninety-eight million, seventeen thousand, fifty-nine".