194197 has 2 divisors, whose sum is σ = 194198. Its totient is φ = 194196.

The previous prime is 194179. The next prime is 194203. The reversal of 194197 is 791491.

Together with previous prime (194179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171396 + 22801 = 414^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 194197 - 2⁷ = 194069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97098 + 97099.

It is an arithmetic number, because the mean of its divisors is an integer number (97099).

2¹⁹⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

194197 is a deficient number, since it is larger than the sum of its proper divisors (1).

194197 is an equidigital number, since it uses as much as digits as its factorization.

194197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 31.

The square root of 194197 is about 440.6778868970. The cubic root of 194197 is about 57.9091920263.

The spelling of 194197 in words is "one hundred ninety-four thousand, one hundred ninety-seven".