4021143 has 16 divisors (see below), whose sum is σ = 6155520. Its totient is φ = 2287296.

The previous prime is 4021099. The next prime is 4021151. The reversal of 4021143 is 3411204.

It is not a de Polignac number, because 4021143 - 2⁶ = 4021079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021153) 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, 8571 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (384720).

Almost surely, 2^4021143 is an apocalyptic number.

4021143 is a deficient number, since it is larger than the sum of its proper divisors (2134377).

4021143 is a wasteful number, since it uses less digits than its factorization.

4021143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4021143 is about 2005.2787836109. The cubic root of 4021143 is about 159.0193006909.

Adding to 4021143 its reverse (3411204), we get a palindrome (7432347).

The spelling of 4021143 in words is "four million, twenty-one thousand, one hundred forty-three".