The math.atan() function returns the trigonometric inverse tangent (also known as arc tangent) of a number.

math.atan(x)

Where x is the number for which you want to find the inverse tangent. The function computes the angle (in radians) whose tangent is equal to x. 

import math

number = 1
inverse_tangent = math.atan(number)

print(inverse_tangent)

In the above case, the inverse tangent of 1 is approximately 0.7853981633974483 radians. We can use the math.degrees() to get the angle in degrees.

import math

number = 1
inverse_tangent = math.atan(number)

print(math.degrees(inverse_tangent))
import math

print(math.degrees(math.atan(5.671281819617707)))
print(math.degrees(math.atan(3.7320508075688776)))
print(math.degrees(math.atan(1.7320508075688767)))
print(math.degrees(math.atan(0.5773502691896257)))