2105653 has 8 divisors (see below), whose sum is σ = 2319840. Its totient is φ = 1895280.

The previous prime is 2105641. The next prime is 2105669. The reversal of 2105653 is 3565012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105653 - 2⁹ = 2105141 is a prime.

It is a Duffinian number.

2105653 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105693) 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, 283 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (289980).

2^2105653 is an apocalyptic number.

It is an amenable number.

2105653 is a deficient number, since it is larger than the sum of its proper divisors (214187).

2105653 is a wasteful number, since it uses less digits than its factorization.

2105653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2105653 is about 1451.0868340661. The cubic root of 2105653 is about 128.1727201186.

The spelling of 2105653 in words is "two million, one hundred five thousand, six hundred fifty-three".