2271156 has 24 divisors (see below), whose sum is σ = 5400864. Its totient is φ = 742560.

The previous prime is 2271151. The next prime is 2271161. The reversal of 2271156 is 6511722.

2271156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2271151) and next prime (2271161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271151) 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 in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (225036).

2^2271156 is an apocalyptic number.

It is an amenable number.

2271156 is an abundant number, since it is smaller than the sum of its proper divisors (3129708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271156 is a wasteful number, since it uses less digits than its factorization.

2271156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631 (or 3629 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 2271156 is about 1507.0355005772. The cubic root of 2271156 is about 131.4464884656.

Adding to 2271156 its reverse (6511722), we get a palindrome (8782878).

The spelling of 2271156 in words is "two million, two hundred seventy-one thousand, one hundred fifty-six".