197285197 has 2 divisors, whose sum is σ = 197285198. Its totient is φ = 197285196.

The previous prime is 197285171. The next prime is 197285213. The reversal of 197285197 is 791582791.

197285197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115906756 + 81378441 = 10766^2 + 9021^2 .

It is a cyclic number.

It is not a de Polignac number, because 197285197 - 2²⁷ = 63067469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197285197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197285117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98642598 + 98642599.

It is an arithmetic number, because the mean of its divisors is an integer number (98642599).

Almost surely, 2^197285197 is an apocalyptic number.

It is an amenable number.

197285197 is a deficient number, since it is larger than the sum of its proper divisors (1).

197285197 is an equidigital number, since it uses as much as digits as its factorization.

197285197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 49.

The square root of 197285197 is about 14045.8248956763. The cubic root of 197285197 is about 582.1454400083.

The spelling of 197285197 in words is "one hundred ninety-seven million, two hundred eighty-five thousand, one hundred ninety-seven".