194394611 has 2 divisors, whose sum is σ = 194394612. Its totient is φ = 194394610.

The previous prime is 194394539. The next prime is 194394637. The reversal of 194394611 is 116493491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194394611 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (194394661) 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, 97197305 + 97197306.

It is an arithmetic number, because the mean of its divisors is an integer number (97197306).

Almost surely, 2^194394611 is an apocalyptic number.

194394611 is a deficient number, since it is larger than the sum of its proper divisors (1).

194394611 is an equidigital number, since it uses as much as digits as its factorization.

194394611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 194394611 is about 13942.5467903106. The cubic root of 194394611 is about 579.2882778103.

The spelling of 194394611 in words is "one hundred ninety-four million, three hundred ninety-four thousand, six hundred eleven".