199243 has 8 divisors (see below), whose sum is σ = 221760. Its totient is φ = 177480.

The previous prime is 199211. The next prime is 199247. The reversal of 199243 is 342991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 199243 - 2⁵ = 199211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199247) 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, 496 + ... + 802.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2¹⁹⁹²⁴³ is an apocalyptic number.

199243 is a deficient number, since it is larger than the sum of its proper divisors (22517).

199243 is a wasteful number, since it uses less digits than its factorization.

199243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 1944, while the sum is 28.

The square root of 199243 is about 446.3664413909. The cubic root of 199243 is about 58.4064787646.

The spelling of 199243 in words is "one hundred ninety-nine thousand, two hundred forty-three".