import math

n = int(input())

s, t = 1, int(2e9)

def f(x):
    return x * (x + 1) /2

while(s + 1 != t):
    x = (s + t) // 2
    f_x = f(x)
    if f_x == n:
        print("YES")
        print(x)
    elif f_x > n:
        t = x + 1
    else:
        s = x -1
print("NO")