2205903 has 32 divisors (see below), whose sum is σ = 3677184. Its totient is φ = 1147392.

The previous prime is 2205893. The next prime is 2205911. The reversal of 2205903 is 3095022.

2205903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2205903 - 2⁴ = 2205887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2205903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205503) 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 31 ways as a sum of consecutive naturals, for example, 13126 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

2^2205903 is an apocalyptic number.

2205903 is a deficient number, since it is larger than the sum of its proper divisors (1471281).

2205903 is a wasteful number, since it uses less digits than its factorization.

2205903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2205903 is about 1485.2282652845. The cubic root of 2205903 is about 130.1753649111.

The spelling of 2205903 in words is "two million, two hundred five thousand, nine hundred three".