Program to check if a given number is Armstrong number or Not

num = int(input("Enter a number to check if it is Armstrong Number"))
n = num
arm_sum = 0

while(n>0):
    mod = n % 10
    n = int(n/10)
    arm_sum += pow(mod, 3)
    
if arm_sum == num:
    print("it's an armstrong number")
else:
    print("Number is NOT an armstrong number")

it's an armstrong number

Program to check if a given number is in Fibonacci Series

prev_num = 0
pres_num = 1

num = int(input("Enter a number: "))
cur_num = prev_num+pres_num

fib_list = []
fib_list.append(prev_num)
fib_list.append(pres_num)

while(cur_num <= num):
    prev_num = pres_num
    pres_num = cur_num
    fib_list.append(cur_num)
    cur_num = prev_num + pres_num
    

print(fib_list)
    
if num in fib_list:
    print('given number is IN fibonacci series')
else:
    print('given number is NOT IN fibonacci series')

[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144]
given number is IN fibonacci series