2163313 has 4 divisors (see below), whose sum is σ = 2237940. Its totient is φ = 2088688.

The previous prime is 2163307. The next prime is 2163341. The reversal of 2163313 is 3133612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1656369 + 506944 = 1287^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163313 - 2⁵ = 2163281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163013) 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 3 ways as a sum of consecutive naturals, for example, 37270 + ... + 37327.

It is an arithmetic number, because the mean of its divisors is an integer number (559485).

2^2163313 is an apocalyptic number.

It is an amenable number.

2163313 is a deficient number, since it is larger than the sum of its proper divisors (74627).

2163313 is an equidigital number, since it uses as much as digits as its factorization.

2163313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74626.

The product of its digits is 324, while the sum is 19.

The square root of 2163313 is about 1470.8205193021. The cubic root of 2163313 is about 129.3321369205.

Adding to 2163313 its reverse (3133612), we get a palindrome (5296925).

Subtracting 2163313 from its reverse (3133612), we obtain a cube (970299 = 99³).

The spelling of 2163313 in words is "two million, one hundred sixty-three thousand, three hundred thirteen".