199573 has 4 divisors (see below), whose sum is σ = 217728. Its totient is φ = 181420.

The previous prime is 199567. The next prime is 199583. The reversal of 199573 is 375991.

199573 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199573 - 2¹⁷ = 68501 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199523) 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, 9061 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2¹⁹⁹⁵⁷³ is an apocalyptic number.

It is an amenable number.

199573 is a deficient number, since it is larger than the sum of its proper divisors (18155).

199573 is a wasteful number, since it uses less digits than its factorization.

199573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154.

The product of its digits is 8505, while the sum is 34.

The square root of 199573 is about 446.7359399019. The cubic root of 199573 is about 58.4387065914.

The spelling of 199573 in words is "one hundred ninety-nine thousand, five hundred seventy-three".