2105305 has 8 divisors (see below), whose sum is σ = 2636352. Its totient is φ = 1610928.

The previous prime is 2105287. The next prime is 2105317. The reversal of 2105305 is 5035012.

2105305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2105305 - 2⁵ = 2105273 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9039 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (329544).

2^2105305 is an apocalyptic number.

It is an amenable number.

2105305 is a deficient number, since it is larger than the sum of its proper divisors (531047).

2105305 is a wasteful number, since it uses less digits than its factorization.

2105305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2105305 is about 1450.9669189889. The cubic root of 2105305 is about 128.1656587202.

The spelling of 2105305 in words is "two million, one hundred five thousand, three hundred five".