199883539 has 2 divisors, whose sum is σ = 199883540.
Its totient is φ = 199883538.
The previous prime is 199883503. The next prime is 199883543. The reversal of 199883539 is 935388991.
It is a strong prime.
It is an emirp because it is prime and its reverse (935388991) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 199883539 - 227 = 65665811 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 199883539.
It is not a weakly prime, because it can be changed into another prime (199883039) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99941769 + 99941770.
It is an arithmetic number, because the mean of its divisors is an integer number (99941770).
Almost surely, 2199883539 is an apocalyptic number.
199883539 is a deficient number, since it is larger than the sum of its proper divisors (1).
199883539 is an equidigital number, since it uses as much as digits as its factorization.
199883539 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2099520, while the sum is 55.
The square root of 199883539 is about 14138.0175060013.
The cubic root of 199883539 is about 584.6900142594.
The spelling of 199883539 in words is "one hundred ninety-nine million, eight hundred eighty-three thousand, five hundred thirty-nine".