Text Constraint

I added a construction plane for each number, directly on the circle and offset around it every 15 degrees. I rotated them so that the planes are perpendicular to the circle.

At this stage you can already check yourself: if you change the size of the circle, all planes should remain in their places.

Next, on each plane I drew a square, attached it to the center (the pink point), and added a horizontal construction line so that later I could rotate the number. Using the text tool, I add the required number and immediately center it inside the square. This process is repeated separately for each number.

Then we extrude the numbers. We rotate them 90 degrees using the construction line we added in the sketch for this purpose. Here we also offset them at the required distance from the circle.

Finally, if needed, you can project the numbers onto a new sketch and use that, or directly use the number bodies as intended.