2163166 has 4 divisors (see below), whose sum is σ = 3244752. Its totient is φ = 1081582.

The previous prime is 2163163. The next prime is 2163167. The reversal of 2163166 is 6613612.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2163166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540790 + ... + 540793.

It is an arithmetic number, because the mean of its divisors is an integer number (811188).

2^2163166 is an apocalyptic number.

2163166 is a deficient number, since it is larger than the sum of its proper divisors (1081586).

2163166 is a wasteful number, since it uses less digits than its factorization.

2163166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081585.

The product of its digits is 1296, while the sum is 25.

The square root of 2163166 is about 1470.7705463464. The cubic root of 2163166 is about 129.3292074238.

Adding to 2163166 its reverse (6613612), we get a palindrome (8776778).

The spelling of 2163166 in words is "two million, one hundred sixty-three thousand, one hundred sixty-six".