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12197 is a prime number

12197 has 2 divisors, whose sum is σ = 12198. Its totient is φ = 12196.

The previous prime is 12163. The next prime is 12203. The reversal of 12197 is 79121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11236 + 961 = 106^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 12197 - 28 = 11941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12107) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098 + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (6099).

212197 is an apocalyptic number.

It is an amenable number.

12197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197 is an equidigital number, since it uses as much as digits as its factorization.

12197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126, while the sum is 20.

The square root of 12197 is about 110.4400289750. The cubic root of 12197 is about 23.0188880762.

The spelling of 12197 in words is "twelve thousand, one hundred ninety-seven".