2003105 has 8 divisors (see below), whose sum is σ = 2588712. Its totient is φ = 1479168.

The previous prime is 2003087. The next prime is 2003119. The reversal of 2003105 is 5013002.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 1948816 = 233^2 + 1396^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15344 + ... + 15473.

It is an arithmetic number, because the mean of its divisors is an integer number (323589).

2^2003105 is an apocalyptic number.

It is an amenable number.

2003105 is a deficient number, since it is larger than the sum of its proper divisors (585607).

2003105 is a wasteful number, since it uses less digits than its factorization.

2003105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30835.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 2003105 is about 1415.3109199042. The cubic root of 2003105 is about 126.0572721914.

Adding to 2003105 its reverse (5013002), we get a palindrome (7016107).

The spelling of 2003105 in words is "two million, three thousand, one hundred five".