199775 has 12 divisors (see below), whose sum is σ = 253704. Its totient is φ = 156000.

The previous prime is 199753. The next prime is 199777. The reversal of 199775 is 577991.

It is a de Polignac number, because none of the positive numbers 2^k-199775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199775.

It is not an unprimeable number, because it can be changed into a prime (199777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1460 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (21142).

2¹⁹⁹⁷⁷⁵ is an apocalyptic number.

199775 is a deficient number, since it is larger than the sum of its proper divisors (53929).

199775 is a wasteful number, since it uses less digits than its factorization.

199775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 197 counting only the distinct ones).

The product of its digits is 19845, while the sum is 38.

The square root of 199775 is about 446.9619670621. The cubic root of 199775 is about 58.4584164023.

The spelling of 199775 in words is "one hundred ninety-nine thousand, seven hundred seventy-five".