2123056 has 40 divisors (see below), whose sum is σ = 4530960. Its totient is φ = 957696.

The previous prime is 2123053. The next prime is 2123063. The reversal of 2123056 is 6503212.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2123053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12186 + ... + 12358.

It is an arithmetic number, because the mean of its divisors is an integer number (113274).

2^2123056 is an apocalyptic number.

2123056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2265480).

2123056 is an abundant number, since it is smaller than the sum of its proper divisors (2407904).

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

2123056 is a wasteful number, since it uses less digits than its factorization.

2123056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2123056 is about 1457.0710346445. The cubic root of 2123056 is about 128.5248630901.

Adding to 2123056 its reverse (6503212), we get a palindrome (8626268).

The spelling of 2123056 in words is "two million, one hundred twenty-three thousand, fifty-six".