2009103 has 4 divisors (see below), whose sum is σ = 2678808. Its totient is φ = 1339400.

The previous prime is 2009093. The next prime is 2009107. The reversal of 2009103 is 3019002.

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 2009103 - 2⁶ = 2009039 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009107) 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, 334848 + ... + 334853.

It is an arithmetic number, because the mean of its divisors is an integer number (669702).

2^2009103 is an apocalyptic number.

2009103 is a deficient number, since it is larger than the sum of its proper divisors (669705).

2009103 is an equidigital number, since it uses as much as digits as its factorization.

2009103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669704.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2009103 is about 1417.4283050652. The cubic root of 2009103 is about 126.1829667346.

It can be divided in two parts, 2009 and 103, that added together give a palindrome (2112).

The spelling of 2009103 in words is "two million, nine thousand, one hundred three".