194001893 has 2 divisors, whose sum is σ = 194001894. Its totient is φ = 194001892.

The previous prime is 194001833. The next prime is 194001901. The reversal of 194001893 is 398100491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 86527204 = 10367^2 + 9302^2 .

It is a cyclic number.

It is not a de Polignac number, because 194001893 - 2²⁰ = 192953317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194001833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97000946 + 97000947.

It is an arithmetic number, because the mean of its divisors is an integer number (97000947).

Almost surely, 2^194001893 is an apocalyptic number.

It is an amenable number.

194001893 is a deficient number, since it is larger than the sum of its proper divisors (1).

194001893 is an equidigital number, since it uses as much as digits as its factorization.

194001893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 194001893 is about 13928.4562317581. The cubic root of 194001893 is about 578.8979201042.

The spelling of 194001893 in words is "one hundred ninety-four million, one thousand, eight hundred ninety-three".