189794203 has 2 divisors, whose sum is σ = 189794204. Its totient is φ = 189794202.

The previous prime is 189794197. The next prime is 189794257. The reversal of 189794203 is 302497981.

It is a weak prime.

It is an emirp because it is prime and its reverse (302497981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189794203 - 2²⁵ = 156239771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189794203.

It is not a weakly prime, because it can be changed into another prime (189794603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94897101 + 94897102.

It is an arithmetic number, because the mean of its divisors is an integer number (94897102).

Almost surely, 2^189794203 is an apocalyptic number.

189794203 is a deficient number, since it is larger than the sum of its proper divisors (1).

189794203 is an equidigital number, since it uses as much as digits as its factorization.

189794203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 189794203 is about 13776.5816877773. The cubic root of 189794203 is about 574.6820704933.

It can be divided in two parts, 1897 and 94203, that added together give a square (96100 = 310²).

The spelling of 189794203 in words is "one hundred eighty-nine million, seven hundred ninety-four thousand, two hundred three".