199434203 has 4 divisors (see below), whose sum is σ = 209930760. Its totient is φ = 188937648.

The previous prime is 199434199. The next prime is 199434229. The reversal of 199434203 is 302434991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199434203 - 2² = 199434199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199436203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5248250 + ... + 5248287.

It is an arithmetic number, because the mean of its divisors is an integer number (52482690).

Almost surely, 2^199434203 is an apocalyptic number.

199434203 is a deficient number, since it is larger than the sum of its proper divisors (10496557).

199434203 is a wasteful number, since it uses less digits than its factorization.

199434203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496556.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 199434203 is about 14122.1175111950. The cubic root of 199434203 is about 584.2515599719.

The spelling of 199434203 in words is "one hundred ninety-nine million, four hundred thirty-four thousand, two hundred three".