2271143 has 4 divisors (see below), whose sum is σ = 2595600. Its totient is φ = 1946688.

The previous prime is 2271133. The next prime is 2271151. The reversal of 2271143 is 3411722.

2271143 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3411722 = 2 ⋅1705861.

It is a cyclic number.

It is not a de Polignac number, because 2271143 - 2¹² = 2267047 is a prime.

2271143 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162218 + ... + 162231.

It is an arithmetic number, because the mean of its divisors is an integer number (648900).

2^2271143 is an apocalyptic number.

2271143 is a deficient number, since it is larger than the sum of its proper divisors (324457).

2271143 is an equidigital number, since it uses as much as digits as its factorization.

2271143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324456.

The product of its digits is 336, while the sum is 20.

The square root of 2271143 is about 1507.0311874676. The cubic root of 2271143 is about 131.4462376671.

Adding to 2271143 its reverse (3411722), we get a palindrome (5682865).

The spelling of 2271143 in words is "two million, two hundred seventy-one thousand, one hundred forty-three".