2163213 has 16 divisors (see below), whose sum is σ = 3451840. Its totient is φ = 1330992.

The previous prime is 2163193. The next prime is 2163221. The reversal of 2163213 is 3123612.

2163213 is a `hidden beast` number, since 21 + 632 + 13 = 666.

It is not a de Polignac number, because 2163213 - 2⁵ = 2163181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2731 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (215740).

2^2163213 is an apocalyptic number.

It is an amenable number.

2163213 is a deficient number, since it is larger than the sum of its proper divisors (1288627).

2163213 is a wasteful number, since it uses less digits than its factorization.

2163213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185 (or 6179 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 2163213 is about 1470.7865242788. The cubic root of 2163213 is about 129.3301440800.

Adding to 2163213 its reverse (3123612), we get a palindrome (5286825).

The spelling of 2163213 in words is "two million, one hundred sixty-three thousand, two hundred thirteen".