1489939143 has 64 divisors (see below), whose sum is σ = 2707292160. Its totient is φ = 704908800.

The previous prime is 1489939133. The next prime is 1489939181. The reversal of 1489939143 is 3419399841.

Together with 1217353016 it forms a betrothed pair.

It is not a de Polignac number, because 1489939143 - 2¹² = 1489935047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489939123) 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 63 ways as a sum of consecutive naturals, for example, 115618 + ... + 127856.

It is an arithmetic number, because the mean of its divisors is an integer number (42301440).

Almost surely, 2^1489939143 is an apocalyptic number.

1489939143 is a deficient number, since it is larger than the sum of its proper divisors (1217353017).

1489939143 is a wasteful number, since it uses less digits than its factorization.

1489939143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308.

The product of its digits is 839808, while the sum is 51.

The square root of 1489939143 is about 38599.7298306607. The cubic root of 1489939143 is about 1142.1492089243.

The spelling of 1489939143 in words is "one billion, four hundred eighty-nine million, nine hundred thirty-nine thousand, one hundred forty-three".