4285143 has 10 divisors (see below), whose sum is σ = 6401384. Its totient is φ = 2856708.

The previous prime is 4285129. The next prime is 4285147. The reversal of 4285143 is 3415824.

It is not a de Polignac number, because 4285143 - 2⁸ = 4284887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4⁶ + 2¹¹ + 8 + 5⁷ + 1 + 4¹¹ + 3⁸ .

It is a Duffinian number.

4285143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4285147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26371 + ... + 26532.

Almost surely, 2^4285143 is an apocalyptic number.

4285143 is a deficient number, since it is larger than the sum of its proper divisors (2116241).

4285143 is an equidigital number, since it uses as much as digits as its factorization.

4285143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52915 (or 52906 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4285143 is about 2070.0586948200. The cubic root of 4285143 is about 162.4258344003.

The spelling of 4285143 in words is "four million, two hundred eighty-five thousand, one hundred forty-three".