194020223 has 2 divisors, whose sum is σ = 194020224. Its totient is φ = 194020222.

The previous prime is 194020213. The next prime is 194020243. The reversal of 194020223 is 322020491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194020223 - 2⁴ = 194020207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194020213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97010111 + 97010112.

It is an arithmetic number, because the mean of its divisors is an integer number (97010112).

Almost surely, 2^194020223 is an apocalyptic number.

194020223 is a deficient number, since it is larger than the sum of its proper divisors (1).

194020223 is an equidigital number, since it uses as much as digits as its factorization.

194020223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 194020223 is about 13929.1142216582. The cubic root of 194020223 is about 578.9161516526.

The spelling of 194020223 in words is "one hundred ninety-four million, twenty thousand, two hundred twenty-three".