199499 has 2 divisors, whose sum is σ = 199500. Its totient is φ = 199498.

The previous prime is 199489. The next prime is 199501. The reversal of 199499 is 994991.

199499 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 (994991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199499 - 2⁴ = 199483 is a prime.

Together with 199501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99749 + 99750.

It is an arithmetic number, because the mean of its divisors is an integer number (99750).

2¹⁹⁹⁴⁹⁹ is an apocalyptic number.

199499 is a deficient number, since it is larger than the sum of its proper divisors (1).

199499 is an equidigital number, since it uses as much as digits as its factorization.

199499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 41.

The square root of 199499 is about 446.6531092470. The cubic root of 199499 is about 58.4314828372.

The spelling of 199499 in words is "one hundred ninety-nine thousand, four hundred ninety-nine".