2105039 has 4 divisors (see below), whose sum is σ = 2121240. Its totient is φ = 2088840.

The previous prime is 2105027. The next prime is 2105069. The reversal of 2105039 is 9305012.

2105039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2105039 - 2²⁰ = 1056463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7904 + ... + 8165.

It is an arithmetic number, because the mean of its divisors is an integer number (530310).

2^2105039 is an apocalyptic number.

2105039 is a deficient number, since it is larger than the sum of its proper divisors (16201).

2105039 is a wasteful number, since it uses less digits than its factorization.

2105039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16200.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 2105039 is about 1450.8752530800. The cubic root of 2105039 is about 128.1602606898.

The spelling of 2105039 in words is "two million, one hundred five thousand, thirty-nine".