2105512 has 16 divisors (see below), whose sum is σ = 4119840. Its totient is φ = 1006896.

The previous prime is 2105507. The next prime is 2105513. The reversal of 2105512 is 2155012.

2105512 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (257490).

2^2105512 is an apocalyptic number.

It is an amenable number.

2105512 is a deficient number, since it is larger than the sum of its proper divisors (2014328).

2105512 is a wasteful number, since it uses less digits than its factorization.

2105512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472 (or 11468 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2105512 is about 1451.0382489790. The cubic root of 2105512 is about 128.1698591285.

The spelling of 2105512 in words is "two million, one hundred five thousand, five hundred twelve".