194044117 has 2 divisors, whose sum is σ = 194044118. Its totient is φ = 194044116.

The previous prime is 194044099. The next prime is 194044157. The reversal of 194044117 is 711440491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184253476 + 9790641 = 13574^2 + 3129^2 .

It is an emirp because it is prime and its reverse (711440491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194044117 - 2¹⁹ = 193519829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194044157) 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, 97022058 + 97022059.

It is an arithmetic number, because the mean of its divisors is an integer number (97022059).

Almost surely, 2^194044117 is an apocalyptic number.

It is an amenable number.

194044117 is a deficient number, since it is larger than the sum of its proper divisors (1).

194044117 is an equidigital number, since it uses as much as digits as its factorization.

194044117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 194044117 is about 13929.9718951619. The cubic root of 194044117 is about 578.9399155925.

The spelling of 194044117 in words is "one hundred ninety-four million, forty-four thousand, one hundred seventeen".