1297171 has 2 divisors, whose sum is σ = 1297172. Its totient is φ = 1297170.

The previous prime is 1297169. The next prime is 1297193. The reversal of 1297171 is 1717921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297171 - 2¹ = 1297169 is a prime.

Together with 1297169, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1297271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648585 + 648586.

It is an arithmetic number, because the mean of its divisors is an integer number (648586).

2^1297171 is an apocalyptic number.

1297171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297171 is an equidigital number, since it uses as much as digits as its factorization.

1297171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882, while the sum is 28.

The square root of 1297171 is about 1138.9341508621. The cubic root of 1297171 is about 109.0600628487.

The spelling of 1297171 in words is "one million, two hundred ninety-seven thousand, one hundred seventy-one".