n = int(input())

res = 0
left = 1
right = 2 * 10**10

while right - left >= 0:
  c = (left + right) // 2
  d = c * (c + 1) // 2
  if d == n:
    res = c
    break
  elif d < n:
    left = c + 1
  elif n < d:
    right = c
  
  if left == right == c:
    break

if res >= 1:
  print('YES')
  print(res)
else:
  print('NO')