194230973 has 2 divisors, whose sum is σ = 194230974. Its totient is φ = 194230972.

The previous prime is 194230969. The next prime is 194230987. The reversal of 194230973 is 379032491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192737689 + 1493284 = 13883^2 + 1222^2 .

It is an emirp because it is prime and its reverse (379032491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194230973 - 2² = 194230969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194230943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97115486 + 97115487.

It is an arithmetic number, because the mean of its divisors is an integer number (97115487).

Almost surely, 2^194230973 is an apocalyptic number.

It is an amenable number.

194230973 is a deficient number, since it is larger than the sum of its proper divisors (1).

194230973 is an equidigital number, since it uses as much as digits as its factorization.

194230973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 194230973 is about 13936.6772582277. The cubic root of 194230973 is about 579.1256872500.

The spelling of 194230973 in words is "one hundred ninety-four million, two hundred thirty thousand, nine hundred seventy-three".