127291 has 2 divisors, whose sum is σ = 127292. Its totient is φ = 127290.

The previous prime is 127289. The next prime is 127297. The reversal of 127291 is 192721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127291 - 2¹ = 127289 is a prime.

Together with 127289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (127297) 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, 63645 + 63646.

It is an arithmetic number, because the mean of its divisors is an integer number (63646).

2¹²⁷²⁹¹ is an apocalyptic number.

127291 is a deficient number, since it is larger than the sum of its proper divisors (1).

127291 is an equidigital number, since it uses as much as digits as its factorization.

127291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 22.

The square root of 127291 is about 356.7786428586. The cubic root of 127291 is about 50.3036192419.

The spelling of 127291 in words is "one hundred twenty-seven thousand, two hundred ninety-one".