198059017 has 4 divisors (see below), whose sum is σ = 213294340. Its totient is φ = 182823696.

The previous prime is 198058979. The next prime is 198059023. The reversal of 198059017 is 710950891.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710950891 = 7 ⋅101564413.

It can be written as a sum of positive squares in 2 ways, for example, as 64979721 + 133079296 = 8061^2 + 11536^2 .

It is a cyclic number.

It is not a de Polignac number, because 198059017 - 2¹⁵ = 198026249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198059077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7617642 + ... + 7617667.

It is an arithmetic number, because the mean of its divisors is an integer number (53323585).

Almost surely, 2^198059017 is an apocalyptic number.

It is an amenable number.

198059017 is a deficient number, since it is larger than the sum of its proper divisors (15235323).

198059017 is a wasteful number, since it uses less digits than its factorization.

198059017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15235322.

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

The square root of 198059017 is about 14073.3442010064. The cubic root of 198059017 is about 582.9055715302.

The spelling of 198059017 in words is "one hundred ninety-eight million, fifty-nine thousand, seventeen".