197243 has 2 divisors, whose sum is σ = 197244. Its totient is φ = 197242.

The previous prime is 197233. The next prime is 197257. The reversal of 197243 is 342791.

197243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (342791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197243 - 2¹² = 193147 is a prime.

It is not a weakly prime, because it can be changed into another prime (197203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98621 + 98622.

It is an arithmetic number, because the mean of its divisors is an integer number (98622).

2¹⁹⁷²⁴³ is an apocalyptic number.

197243 is a deficient number, since it is larger than the sum of its proper divisors (1).

197243 is an equidigital number, since it uses as much as digits as its factorization.

197243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 197243 is about 444.1204791495. The cubic root of 197243 is about 58.2103932345.

The spelling of 197243 in words is "one hundred ninety-seven thousand, two hundred forty-three".