971291 has 2 divisors, whose sum is σ = 971292. Its totient is φ = 971290.

The previous prime is 971281. The next prime is 971309. The reversal of 971291 is 192179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 971291 - 2¹⁰ = 970267 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 971291.

It is not a weakly prime, because it can be changed into another prime (971251) 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, 485645 + 485646.

It is an arithmetic number, because the mean of its divisors is an integer number (485646).

2⁹⁷¹²⁹¹ is an apocalyptic number.

971291 is a deficient number, since it is larger than the sum of its proper divisors (1).

971291 is an equidigital number, since it uses as much as digits as its factorization.

971291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 29.

The square root of 971291 is about 985.5409681997. The cubic root of 971291 is about 99.0337265629.

The spelling of 971291 in words is "nine hundred seventy-one thousand, two hundred ninety-one".