2103613 has 2 divisors, whose sum is σ = 2103614. Its totient is φ = 2103612.

The previous prime is 2103611. The next prime is 2103617. The reversal of 2103613 is 3163012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 1026169 = 1038^2 + 1013^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103613 - 2¹ = 2103611 is a prime.

Together with 2103611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051806 + 1051807.

It is an arithmetic number, because the mean of its divisors is an integer number (1051807).

2^2103613 is an apocalyptic number.

It is an amenable number.

2103613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103613 is an equidigital number, since it uses as much as digits as its factorization.

2103613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2103613 is about 1450.3837423248. The cubic root of 2103613 is about 128.1313146204.

Adding to 2103613 its reverse (3163012), we get a palindrome (5266625).

The spelling of 2103613 in words is "two million, one hundred three thousand, six hundred thirteen".