by Des MacHale
My telephone number is a perfect square with the digits 1 to 9 in some order. Its square root ia a five digit number whose digits have consecutive values in some order.
My neighbour’s number is also a perfect square using the digits 1 to 9 in some order (although you don’t need to know this). His number is at least double mine.
With logic and a few calculations you should be able to work out my number.
What is it?