194073973 has 2 divisors, whose sum is σ = 194073974. Its totient is φ = 194073972.

The previous prime is 194073967. The next prime is 194073983. The reversal of 194073973 is 379370491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152819044 + 41254929 = 12362^2 + 6423^2 .

It is an emirp because it is prime and its reverse (379370491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194073973 - 2⁵ = 194073941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194073983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97036986 + 97036987.

It is an arithmetic number, because the mean of its divisors is an integer number (97036987).

Almost surely, 2^194073973 is an apocalyptic number.

It is an amenable number.

194073973 is a deficient number, since it is larger than the sum of its proper divisors (1).

194073973 is an equidigital number, since it uses as much as digits as its factorization.

194073973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 194073973 is about 13931.0435000398. The cubic root of 194073973 is about 578.9696063384.

The spelling of 194073973 in words is "one hundred ninety-four million, seventy-three thousand, nine hundred seventy-three".