8271281 has 2 divisors, whose sum is σ = 8271282. Its totient is φ = 8271280.

The previous prime is 8271271. The next prime is 8271301. The reversal of 8271281 is 1821728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4661281 + 3610000 = 2159^2 + 1900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8271281 is a prime.

It is a super-2 number, since 2×8271281² = 136828178761922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8271271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4135640 + 4135641.

It is an arithmetic number, because the mean of its divisors is an integer number (4135641).

Almost surely, 2^8271281 is an apocalyptic number.

It is an amenable number.

8271281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8271281 is an equidigital number, since it uses as much as digits as its factorization.

8271281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 29.

The square root of 8271281 is about 2875.9834839581. The cubic root of 8271281 is about 202.2355925203.

The spelling of 8271281 in words is "eight million, two hundred seventy-one thousand, two hundred eighty-one".