High-energy atmospheric muons are of special relevance to deep underwater/ice large-volume neutrino telescopes as they constitute by far their major event yield. Understanding their characteristics at sea level can help to properly interpret the observed signal. This work aims to investigate the flux and the charge ratio of atmospheric muons above 100~GeV at sea level. The calculations are carried out using the simulation program CORSIKA in combination with different up-to-date hadronic interaction models. The obtained results are compared with recent experimental data as well as with Gaisser analytical parametric model.