4042143 has 20 divisors (see below), whose sum is σ = 6901840. Its totient is φ = 2309472.

The previous prime is 4042111. The next prime is 4042153. The reversal of 4042143 is 3412404.

It is not a de Polignac number, because 4042143 - 2⁵ = 4042111 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 (4042153) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2998 + ... + 4131.

It is an arithmetic number, because the mean of its divisors is an integer number (345092).

Almost surely, 2^4042143 is an apocalyptic number.

4042143 is a deficient number, since it is larger than the sum of its proper divisors (2859697).

4042143 is an equidigital number, since it uses as much as digits as its factorization.

4042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148 (or 7139 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4042143 is about 2010.5081447236. The cubic root of 4042143 is about 159.2956407672.

Adding to 4042143 its reverse (3412404), we get a palindrome (7454547).

The spelling of 4042143 in words is "four million, forty-two thousand, one hundred forty-three".