2271287 has 2 divisors, whose sum is σ = 2271288. Its totient is φ = 2271286.

The previous prime is 2271281. The next prime is 2271301. The reversal of 2271287 is 7821722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2271287 - 2⁴ = 2271271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2271281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135643 + 1135644.

It is an arithmetic number, because the mean of its divisors is an integer number (1135644).

2^2271287 is an apocalyptic number.

2271287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271287 is an equidigital number, since it uses as much as digits as its factorization.

2271287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 29.

The square root of 2271287 is about 1507.0789627621. The cubic root of 2271287 is about 131.4490156895.

The spelling of 2271287 in words is "two million, two hundred seventy-one thousand, two hundred eighty-seven".