198153017 has 2 divisors, whose sum is σ = 198153018. Its totient is φ = 198153016.

The previous prime is 198153001. The next prime is 198153031. The reversal of 198153017 is 710351891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194295721 + 3857296 = 13939^2 + 1964^2 .

It is an emirp because it is prime and its reverse (710351891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198153017 - 2⁴ = 198153001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198153097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99076508 + 99076509.

It is an arithmetic number, because the mean of its divisors is an integer number (99076509).

Almost surely, 2^198153017 is an apocalyptic number.

It is an amenable number.

198153017 is a deficient number, since it is larger than the sum of its proper divisors (1).

198153017 is an equidigital number, since it uses as much as digits as its factorization.

198153017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 198153017 is about 14076.6834517226. The cubic root of 198153017 is about 582.9977737745.

The spelling of 198153017 in words is "one hundred ninety-eight million, one hundred fifty-three thousand, seventeen".