195197 has 2 divisors, whose sum is σ = 195198. Its totient is φ = 195196.

The previous prime is 195193. The next prime is 195203. The reversal of 195197 is 791591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177241 + 17956 = 421^2 + 134^2 .

It is a cyclic number.

It is not a de Polignac number, because 195197 - 2² = 195193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97598 + 97599.

It is an arithmetic number, because the mean of its divisors is an integer number (97599).

2¹⁹⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

195197 is a deficient number, since it is larger than the sum of its proper divisors (1).

195197 is an equidigital number, since it uses as much as digits as its factorization.

195197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 32.

The square root of 195197 is about 441.8110455840. The cubic root of 195197 is about 58.0084212901.

It can be divided in two parts, 1951 and 97, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 195197 in words is "one hundred ninety-five thousand, one hundred ninety-seven".