2163613 has 2 divisors, whose sum is σ = 2163614. Its totient is φ = 2163612.

The previous prime is 2163593. The next prime is 2163653. The reversal of 2163613 is 3163612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1340964 + 822649 = 1158^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163613 - 2⁹ = 2163101 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081806 + 1081807.

It is an arithmetic number, because the mean of its divisors is an integer number (1081807).

2^2163613 is an apocalyptic number.

It is an amenable number.

2163613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163613 is an equidigital number, since it uses as much as digits as its factorization.

2163613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 2163613 is about 1470.9224996580. The cubic root of 2163613 is about 129.3381150734.

Subtracting 2163613 from its reverse (3163612), we obtain a palindrome (999999).

The spelling of 2163613 in words is "two million, one hundred sixty-three thousand, six hundred thirteen".