197197573 has 2 divisors, whose sum is σ = 197197574. Its totient is φ = 197197572.

The previous prime is 197197489. The next prime is 197197579. The reversal of 197197573 is 375791791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196925089 + 272484 = 14033^2 + 522^2 .

It is an emirp because it is prime and its reverse (375791791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197197573 - 2⁹ = 197197061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197197579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98598786 + 98598787.

It is an arithmetic number, because the mean of its divisors is an integer number (98598787).

Almost surely, 2^197197573 is an apocalyptic number.

It is an amenable number.

197197573 is a deficient number, since it is larger than the sum of its proper divisors (1).

197197573 is an equidigital number, since it uses as much as digits as its factorization.

197197573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 416745, while the sum is 49.

The square root of 197197573 is about 14042.7053305266. The cubic root of 197197573 is about 582.0592408296.

The spelling of 197197573 in words is "one hundred ninety-seven million, one hundred ninety-seven thousand, five hundred seventy-three".