2163243 has 8 divisors (see below), whose sum is σ = 2931856. Its totient is φ = 1418400.

The previous prime is 2163241. The next prime is 2163247. The reversal of 2163243 is 3423612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2163243 - 2¹ = 2163241 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 6 + 3² + 2²¹ + 4⁸ + 3³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163241) 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 7 ways as a sum of consecutive naturals, for example, 5728 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (366482).

2^2163243 is an apocalyptic number.

2163243 is a deficient number, since it is larger than the sum of its proper divisors (768613).

2163243 is a wasteful number, since it uses less digits than its factorization.

2163243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885.

The product of its digits is 864, while the sum is 21.

The square root of 2163243 is about 1470.7967228683. The cubic root of 2163243 is about 129.3307419386.

Adding to 2163243 its reverse (3423612), we get a palindrome (5586855).

The spelling of 2163243 in words is "two million, one hundred sixty-three thousand, two hundred forty-three".