489431143 has 4 divisors (see below), whose sum is σ = 489475728. Its totient is φ = 489386560.

The previous prime is 489431141. The next prime is 489431167. The reversal of 489431143 is 341134984.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 489431143 - 2¹ = 489431141 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 (489431141) 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 in 3 ways as a sum of consecutive naturals, for example, 7038 + ... + 32068.

It is an arithmetic number, because the mean of its divisors is an integer number (122368932).

Almost surely, 2^489431143 is an apocalyptic number.

489431143 is a deficient number, since it is larger than the sum of its proper divisors (44585).

489431143 is a wasteful number, since it uses less digits than its factorization.

489431143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44584.

The product of its digits is 41472, while the sum is 37.

The square root of 489431143 is about 22123.0907198791. The cubic root of 489431143 is about 788.0683153215.

It can be divided in two parts, 48943 and 1143, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 489431143 in words is "four hundred eighty-nine million, four hundred thirty-one thousand, one hundred forty-three".