From the statement, we know that the approximate volume of planet Mercury is:

The planet has a sphere shape. The volume of a sphere of radius r is:

Solving for the radius, we get:
![\begin{gathered} r^3=(3)/(4\pi)\cdot V, \\ r=\sqrt[3]{(3)/(4\pi)\cdot V}\text{.} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/2eqo2fnbz07kj0hwwzmqllezexqz35f9gr.png)
Replacing the value of V, we get:
![r=\sqrt[3]{(3)/(4\pi)\cdot1.459\cdot10^(10)ml^3}\cong1515.84767ml\cong1516ml.](https://img.qammunity.org/2023/formulas/mathematics/college/hz1a1ys6yncnyz0vp49102vj31goqtr43o.png)
Answer
The radius of Mercury is approximately 1516 miles to the nearest mile.