194442373 has 2 divisors, whose sum is σ = 194442374. Its totient is φ = 194442372.

The previous prime is 194442359. The next prime is 194442401. The reversal of 194442373 is 373244491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 15069924 = 13393^2 + 3882^2 .

It is a cyclic number.

It is not a de Polignac number, because 194442373 - 2⁹ = 194441861 is a prime.

It is a super-2 number, since 2×194442373² = 75615672835742258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194442343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97221186 + 97221187.

It is an arithmetic number, because the mean of its divisors is an integer number (97221187).

Almost surely, 2^194442373 is an apocalyptic number.

It is an amenable number.

194442373 is a deficient number, since it is larger than the sum of its proper divisors (1).

194442373 is an equidigital number, since it uses as much as digits as its factorization.

194442373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 194442373 is about 13944.2594998802. The cubic root of 194442373 is about 579.3357168844.

The spelling of 194442373 in words is "one hundred ninety-four million, four hundred forty-two thousand, three hundred seventy-three".