ACROSS
1: All digits are odd and all are different.
5: The sum of the digits is half the cube root of 3 down.
6: A prime number.
8: This number is three times the sum of its digits.
9: This number reversed is the square of an even number.
11: Is the same number when reversed and is divisible by 9.
DOWN
1: First three digits are the first three digits of 4 down rearranged.
2: A prime number.
3: A perfect cube.
4: Each digit is greater than the preceding one.
7: A multiple of 8 across.
10: The sum of the digits is the square of a perfect square.
(Note: There are no zeros in any cells.)
Solution
