1276271 has 2 divisors, whose sum is σ = 1276272. Its totient is φ = 1276270.

The previous prime is 1276243. The next prime is 1276279. The reversal of 1276271 is 1726721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1276271 - 2¹⁸ = 1014127 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1276271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638135 + 638136.

It is an arithmetic number, because the mean of its divisors is an integer number (638136).

2^1276271 is an apocalyptic number.

1276271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276271 is an equidigital number, since it uses as much as digits as its factorization.

1276271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 1276271 is about 1129.7216471326. The cubic root of 1276271 is about 108.4711639481.

The spelling of 1276271 in words is "one million, two hundred seventy-six thousand, two hundred seventy-one".