MOD = 10 ** 9 + 7
INF = 10 ** 15

def main():  
    N = int(input())
    X = int((-1 + (1 + 8*N) ** 0.5//2) - 4)
    while True:
        if X*(X + 1) == 2*N:
            print('YES')
            print(X)
            return
        if X*(X + 1) > 2*N:
            print('NO')
            return
        X += 1
if __name__ == '__main__':
    main()