2105612 has 12 divisors (see below), whose sum is σ = 3735816. Its totient is φ = 1038240.

The previous prime is 2105611. The next prime is 2105641. The reversal of 2105612 is 2165012.

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 (2105611) 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, 3314 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (311318).

2^2105612 is an apocalyptic number.

It is an amenable number.

2105612 is a deficient number, since it is larger than the sum of its proper divisors (1630204).

2105612 is a wasteful number, since it uses less digits than its factorization.

2105612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288 (or 7286 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2105612 is about 1451.0727066553. The cubic root of 2105612 is about 128.1718882126.

The spelling of 2105612 in words is "two million, one hundred five thousand, six hundred twelve".