4985143 has 4 divisors (see below), whose sum is σ = 4991328. Its totient is φ = 4978960.

The previous prime is 4985107. The next prime is 4985159. The reversal of 4985143 is 3415894.

4985143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3415894 = 2 ⋅1707947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4985143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4985099 and 4985108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985443) 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, 1663 + ... + 3568.

It is an arithmetic number, because the mean of its divisors is an integer number (1247832).

Almost surely, 2^4985143 is an apocalyptic number.

4985143 is a deficient number, since it is larger than the sum of its proper divisors (6185).

4985143 is an equidigital number, since it uses as much as digits as its factorization.

4985143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184.

The product of its digits is 17280, while the sum is 34.

The square root of 4985143 is about 2232.7433797909. The cubic root of 4985143 is about 170.8280592198.

It can be divided in two parts, 49851 and 43, that added together give a palindrome (49894).

The spelling of 4985143 in words is "four million, nine hundred eighty-five thousand, one hundred forty-three".