2103653 has 2 divisors, whose sum is σ = 2103654. Its totient is φ = 2103652.

The previous prime is 2103617. The next prime is 2103667. The reversal of 2103653 is 3563012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 889249 = 1102^2 + 943^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103653 - 2⁶ = 2103589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103613) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051826 + 1051827.

It is an arithmetic number, because the mean of its divisors is an integer number (1051827).

2^2103653 is an apocalyptic number.

It is an amenable number.

2103653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103653 is an equidigital number, since it uses as much as digits as its factorization.

2103653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2103653 is about 1450.3975317133. The cubic root of 2103653 is about 128.1321267501.

Adding to 2103653 its reverse (3563012), we get a palindrome (5666665).

The spelling of 2103653 in words is "two million, one hundred three thousand, six hundred fifty-three".