Series.dt.is_leap_year Logical indicating if the date belongs to a leap year

Series.rdiv(other, level=None, fill_value=None, axis=0)

Series.valid(inplace=False, **kwargs)

Series.is_monotonic_decreasing Return boolean if values in the object are monotonic_decreasing

Series.dt.to_pytimedelta()

Series.select(crit, axis=0)

Series.nbytes return the number of bytes in the underlying data

Series.ftypes return if the data is sparse|dense

Series.dt.is_year_start Logical indicating if first day of year (defined by frequency)

Series.to_pickle(path)