2163143 has 4 divisors (see below), whose sum is σ = 2170368. Its totient is φ = 2155920.

The previous prime is 2163137. The next prime is 2163163. The reversal of 2163143 is 3413612.

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

It is a cyclic number.

It is not a de Polignac number, because 2163143 - 2⁶ = 2163079 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 (2163113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143 + ... + 3768.

It is an arithmetic number, because the mean of its divisors is an integer number (542592).

2^2163143 is an apocalyptic number.

2163143 is a deficient number, since it is larger than the sum of its proper divisors (7225).

2163143 is an equidigital number, since it uses as much as digits as its factorization.

2163143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224.

The product of its digits is 432, while the sum is 20.

The square root of 2163143 is about 1470.7627272949. The cubic root of 2163143 is about 129.3287490552.

Adding to 2163143 its reverse (3413612), we get a palindrome (5576755).

The spelling of 2163143 in words is "two million, one hundred sixty-three thousand, one hundred forty-three".