We know that 45 = 9 × 5 where 9 and 5 are co-prime numbers. Also 9 and 5 are
factors of 45. Hence
if a number is divisible by 5 and 9, the number will be divisible by their product 45 also.
If a number is not divisible by 5 or 9, it is not divisible by 45

112330 is divisible by 5 but not divisible by 9 => 112330 is not divisible by 45
202860 is divisible by 5 and 9 => 202860 is divisible by 45
165642 is not divisible by 5 and 9 => 165642 is not divisible by 45
Hence, 202860 is the answer