489815139 has 24 divisors (see below), whose sum is σ = 737277520. Its totient is φ = 288826560.

The previous prime is 489815129. The next prime is 489815171. The reversal of 489815139 is 931518984.

It is not a de Polignac number, because 489815139 - 2⁹ = 489814627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489815129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4804 + ... + 31665.

Almost surely, 2^489815139 is an apocalyptic number.

489815139 is a deficient number, since it is larger than the sum of its proper divisors (247462381).

489815139 is a wasteful number, since it uses less digits than its factorization.

489815139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36531 (or 36520 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 489815139 is about 22131.7676429155. The cubic root of 489815139 is about 788.2743613119.

The spelling of 489815139 in words is "four hundred eighty-nine million, eight hundred fifteen thousand, one hundred thirty-nine".