2103045 has 16 divisors (see below), whose sum is σ = 3845760. Its totient is φ = 961344.

The previous prime is 2103041. The next prime is 2103067. The reversal of 2103045 is 5403012.

It is not a de Polignac number, because 2103045 - 2² = 2103041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910 + ... + 10119.

It is an arithmetic number, because the mean of its divisors is an integer number (240360).

2^2103045 is an apocalyptic number.

It is an amenable number.

2103045 is a deficient number, since it is larger than the sum of its proper divisors (1742715).

2103045 is a wasteful number, since it uses less digits than its factorization.

2103045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2103045 is about 1450.1879188574. The cubic root of 2103045 is about 128.1197812667.

Adding to 2103045 its reverse (5403012), we get a palindrome (7506057).

The spelling of 2103045 in words is "two million, one hundred three thousand, forty-five".