I'm a math teacher. Next week I'll give a special lecture about number theory curiosities. It will treat special properties of numbers — the famous story with Ramanujan, taxicab numbers, later numbers divisible by all their digits, etc.
I was given class number $146$ for the lecture and I think it would be fine to start with a special property of our class's number. Ramanujan would surely find something at once, but I can't. Do you see any special properties of $146$?
Here are some of my observations, but these properties are not very special:
$146$ is a semiprime number (product of two distinct primes), while the reversal $641$ is prime.
$146 = 4^3 + 4^3 + 3^2 + 3^2$.
Here is a very similar question, just to show what kind of question this is and what kind of answers I would like to see.