2271566 has 16 divisors (see below), whose sum is σ = 3767040. Its totient is φ = 1018680.

The previous prime is 2271553. The next prime is 2271569. The reversal of 2271566 is 6651722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (235440).

2^2271566 is an apocalyptic number.

2271566 is a deficient number, since it is larger than the sum of its proper divisors (1495474).

2271566 is a wasteful number, since it uses less digits than its factorization.

2271566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its digits is 5040, while the sum is 29.

The square root of 2271566 is about 1507.1715230855. The cubic root of 2271566 is about 131.4543977737.

The spelling of 2271566 in words is "two million, two hundred seventy-one thousand, five hundred sixty-six".