198099259 has 2 divisors, whose sum is σ = 198099260. Its totient is φ = 198099258.

The previous prime is 198099257. The next prime is 198099271. The reversal of 198099259 is 952990891.

It is a weak prime.

It is an emirp because it is prime and its reverse (952990891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198099259 - 2¹ = 198099257 is a prime.

Together with 198099257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (198099257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99049629 + 99049630.

It is an arithmetic number, because the mean of its divisors is an integer number (99049630).

Almost surely, 2^198099259 is an apocalyptic number.

198099259 is a deficient number, since it is larger than the sum of its proper divisors (1).

198099259 is an equidigital number, since it uses as much as digits as its factorization.

198099259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 52.

The square root of 198099259 is about 14074.7738525349. The cubic root of 198099259 is about 582.9450474700.

The spelling of 198099259 in words is "one hundred ninety-eight million, ninety-nine thousand, two hundred fifty-nine".