2105712 has 60 divisors (see below), whose sum is σ = 6738160. Its totient is φ = 601344.

The previous prime is 2105699. The next prime is 2105717. The reversal of 2105712 is 2175012.

2105712 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37 + ... + 2052.

2^2105712 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 2105712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3369080).

2105712 is an abundant number, since it is smaller than the sum of its proper divisors (4632448).

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

2105712 is a wasteful number, since it uses less digits than its factorization.

2105712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2105712 is about 1451.1071635134. The cubic root of 2105712 is about 128.1739172325.

The spelling of 2105712 in words is "two million, one hundred five thousand, seven hundred twelve".