189419201 has 2 divisors, whose sum is σ = 189419202. Its totient is φ = 189419200.

The previous prime is 189419179. The next prime is 189419239. The reversal of 189419201 is 102914981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105678400 + 83740801 = 10280^2 + 9151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189419201 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (189419261) 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, 94709600 + 94709601.

It is an arithmetic number, because the mean of its divisors is an integer number (94709601).

Almost surely, 2^189419201 is an apocalyptic number.

It is an amenable number.

189419201 is a deficient number, since it is larger than the sum of its proper divisors (1).

189419201 is an equidigital number, since it uses as much as digits as its factorization.

189419201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 189419201 is about 13762.9648332036. The cubic root of 189419201 is about 574.3033286530.

The spelling of 189419201 in words is "one hundred eighty-nine million, four hundred nineteen thousand, two hundred one".