199805075 has 24 divisors (see below), whose sum is σ = 256935936. Its totient is φ = 153972000.

The previous prime is 199805057. The next prime is 199805077. The reversal of 199805075 is 570508991.

It is a happy number.

199805075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199805075 - 2¹⁰ = 199804051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199805077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218870 + ... + 219780.

It is an arithmetic number, because the mean of its divisors is an integer number (10705664).

Almost surely, 2^199805075 is an apocalyptic number.

199805075 is a deficient number, since it is larger than the sum of its proper divisors (57130861).

199805075 is a wasteful number, since it uses less digits than its factorization.

199805075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 199805075 is about 14135.2423042550. The cubic root of 199805075 is about 584.6134978342.

The spelling of 199805075 in words is "one hundred ninety-nine million, eight hundred five thousand, seventy-five".