199319 has 4 divisors (see below), whose sum is σ = 204744. Its totient is φ = 193896.

The previous prime is 199313. The next prime is 199321. The reversal of 199319 is 913991.

199319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199319 is a prime.

It is a super-2 number, since 2×199319² = 79456127522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2657 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (51186).

2¹⁹⁹³¹⁹ is an apocalyptic number.

199319 is a deficient number, since it is larger than the sum of its proper divisors (5425).

199319 is an equidigital number, since it uses as much as digits as its factorization.

199319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424.

The product of its digits is 2187, while the sum is 32.

The square root of 199319 is about 446.4515651221. The cubic root of 199319 is about 58.4139040829.

The spelling of 199319 in words is "one hundred ninety-nine thousand, three hundred nineteen".