4278143 has 2 divisors, whose sum is σ = 4278144. Its totient is φ = 4278142.

The previous prime is 4278139. The next prime is 4278179. The reversal of 4278143 is 3418724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278143 - 2² = 4278139 is a prime.

It is a super-3 number, since 3×4278143³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139071 + 2139072.

It is an arithmetic number, because the mean of its divisors is an integer number (2139072).

Almost surely, 2^4278143 is an apocalyptic number.

4278143 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278143 is an equidigital number, since it uses as much as digits as its factorization.

4278143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 4278143 is about 2068.3672304501. The cubic root of 4278143 is about 162.3373425647.

It can be divided in two parts, 42781 and 43, that added together give a palindrome (42824).

The spelling of 4278143 in words is "four million, two hundred seventy-eight thousand, one hundred forty-three".