199019 has 8 divisors (see below), whose sum is σ = 220320. Its totient is φ = 178816.

The previous prime is 198997. The next prime is 199021. The reversal of 199019 is 910991.

199019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199019 is a prime.

It is a super-2 number, since 2×199019² = 79217124722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198982 and 199000.

It is not an unprimeable number, because it can be changed into a prime (199039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137 + ... + 645.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2¹⁹⁹⁰¹⁹ is an apocalyptic number.

199019 is a deficient number, since it is larger than the sum of its proper divisors (21301).

199019 is a wasteful number, since it uses less digits than its factorization.

199019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 199019 is about 446.1154559080. The cubic root of 199019 is about 58.3845826257.

The spelling of 199019 in words is "one hundred ninety-nine thousand, nineteen".