197441 has 2 divisors, whose sum is σ = 197442. Its totient is φ = 197440.

The previous prime is 197423. The next prime is 197453. The reversal of 197441 is 144791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163216 + 34225 = 404^2 + 185^2 .

It is an emirp because it is prime and its reverse (144791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197441 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 197441.

It is not a weakly prime, because it can be changed into another prime (197341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98720 + 98721.

It is an arithmetic number, because the mean of its divisors is an integer number (98721).

2¹⁹⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

197441 is a deficient number, since it is larger than the sum of its proper divisors (1).

197441 is an equidigital number, since it uses as much as digits as its factorization.

197441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 197441 is about 444.3433357214. The cubic root of 197441 is about 58.2298646536.

Subtracting from 197441 its reverse (144791), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 197441 in words is "one hundred ninety-seven thousand, four hundred forty-one".