199559 has 2 divisors, whose sum is σ = 199560. Its totient is φ = 199558.

The previous prime is 199523. The next prime is 199567. The reversal of 199559 is 955991.

199559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (955991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199559 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199559.

It is not a weakly prime, because it can be changed into another prime (193559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99779 + 99780.

It is an arithmetic number, because the mean of its divisors is an integer number (99780).

2¹⁹⁹⁵⁵⁹ is an apocalyptic number.

199559 is a deficient number, since it is larger than the sum of its proper divisors (1).

199559 is an equidigital number, since it uses as much as digits as its factorization.

199559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18225, while the sum is 38.

The square root of 199559 is about 446.7202704154. The cubic root of 199559 is about 58.4373400722.

The spelling of 199559 in words is "one hundred ninety-nine thousand, five hundred fifty-nine".