You will need some more calories to gain weight, based on your weight and activity levels.
Your BMR is approximately 1600 calories.
If you exercise 3–5 times a week, your activity multiplier to be around 1.55.
That makes your TDEE to be 2,480 calories.
I would add 200 calories more (which takes your total to 2700 calories) and monitor my weight every week.
If I am not gaining, I will further add 100–200 calories more until I start gaining.
Hope this helps:)