It was discovered during the Palomar–Leiden Trojan survey on 26 March 1971, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States.
Based on its high albedo measured by the Wide-field Infrared Survey Explorer, Mulisch likely belongs to the stony S-complex.
[2] According to the survey carried out by the NEOWISE mission of NASA's WISE telescope, Mulisch measures 2.398 kilometers in diameter and its surface has an albedo of 0.337.
[4] This minor planet was named after Dutch writer Harry Mulisch (1927–2010), known for his novels, plays, essays, poems and philosophical reflections such as The Discovery of Heaven.
[1] The official naming citation was published by the Minor Planet Center on 13 June 2006 (M.P.C.