2002143 has 24 divisors (see below), whose sum is σ = 3162240. Its totient is φ = 1116960.

The previous prime is 2002093. The next prime is 2002151. The reversal of 2002143 is 3412002.

It is not a de Polignac number, because 2002143 - 2⁶ = 2002079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5398 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (131760).

2^2002143 is an apocalyptic number.

2002143 is a deficient number, since it is larger than the sum of its proper divisors (1160097).

2002143 is a wasteful number, since it uses less digits than its factorization.

2002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2002143 is about 1414.9710244383. The cubic root of 2002143 is about 126.0370891066.

Adding to 2002143 its reverse (3412002), we get a palindrome (5414145).

It can be divided in two parts, 2002 and 143, that added together give a triangular number (2145 = T₆₅).

The spelling of 2002143 in words is "two million, two thousand, one hundred forty-three".