2101056 has 56 divisors (see below), whose sum is σ = 5754624. Its totient is φ = 675840.

The previous prime is 2101051. The next prime is 2101061. The reversal of 2101056 is 6501012.

It is an interprime number because it is at equal distance from previous prime (2101051) and next prime (2101061).

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 (2101051) 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, 5776 + ... + 6128.

2^2101056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2877312).

2101056 is an abundant number, since it is smaller than the sum of its proper divisors (3653568).

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

2101056 is a wasteful number, since it uses less digits than its factorization.

2101056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2101056 is about 1449.5019834412. The cubic root of 2101056 is about 128.0793778478.

Adding to 2101056 its reverse (6501012), we get a palindrome (8602068).

The spelling of 2101056 in words is "two million, one hundred one thousand, fifty-six".