The answer is 2506
2506 is divisible by 7.
Here, the ones digit is three times the thousands digit that is 6 is 3 times of 2.
The sum of my digits is 13 that is 2+5+0+6=13.
The hundreds digit is 1 less than the ones digit that is 5=6–1.
So, the four digit number that satisfies the given conditions.