2143056 has 20 divisors (see below), whose sum is σ = 5536352. Its totient is φ = 714336.

The previous prime is 2143051. The next prime is 2143069. The reversal of 2143056 is 6503412.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143051) 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, 22276 + ... + 22371.

2^2143056 is an apocalyptic number.

It is an amenable number.

2143056 is an abundant number, since it is smaller than the sum of its proper divisors (3393296).

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

2143056 is a wasteful number, since it uses less digits than its factorization.

2143056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44658 (or 44652 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2143056 is about 1463.9180304921. The cubic root of 2143056 is about 128.9271868399.

Adding to 2143056 its reverse (6503412), we get a palindrome (8646468).

The spelling of 2143056 in words is "two million, one hundred forty-three thousand, fifty-six".