194730199 has 2 divisors, whose sum is σ = 194730200. Its totient is φ = 194730198.

The previous prime is 194730161. The next prime is 194730203. The reversal of 194730199 is 991037491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194730199 - 2¹⁹ = 194205911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194730139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97365099 + 97365100.

It is an arithmetic number, because the mean of its divisors is an integer number (97365100).

Almost surely, 2^194730199 is an apocalyptic number.

194730199 is a deficient number, since it is larger than the sum of its proper divisors (1).

194730199 is an equidigital number, since it uses as much as digits as its factorization.

194730199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 194730199 is about 13954.5762744700. The cubic root of 194730199 is about 579.6214325099.

The spelling of 194730199 in words is "one hundred ninety-four million, seven hundred thirty thousand, one hundred ninety-nine".