4243143 has 4 divisors (see below), whose sum is σ = 5657528. Its totient is φ = 2828760.

The previous prime is 4243139. The next prime is 4243147. The reversal of 4243143 is 3413424.

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

It is an interprime number because it is at equal distance from previous prime (4243139) and next prime (4243147).

It is not a de Polignac number, because 4243143 - 2² = 4243139 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 2¹³ + 4⁵ + 3⁹ + 1 + 4¹¹ + 3⁹ .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243147) 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, 707188 + ... + 707193.

It is an arithmetic number, because the mean of its divisors is an integer number (1414382).

Almost surely, 2^4243143 is an apocalyptic number.

4243143 is a deficient number, since it is larger than the sum of its proper divisors (1414385).

4243143 is a wasteful number, since it uses less digits than its factorization.

4243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414384.

The product of its digits is 1152, while the sum is 21.

The square root of 4243143 is about 2059.8890746834. The cubic root of 4243143 is about 161.8934293751.

Adding to 4243143 its reverse (3413424), we get a palindrome (7656567).

The spelling of 4243143 in words is "four million, two hundred forty-three thousand, one hundred forty-three".