This graph is the complement of the Johnson graph $\mathrm{J}(19,2)$.
| Number of vertices: | $171$ |
| Diameter: | $2$ |
| Intersection array: | $\{136,30;1,120\}$ |
| Spectrum: | $136^1 1^{152} (-16)^{18}$ |
| Automorphism group: | $\mathrm{S}_{19}$ |
| Distance-transitive: | Yes |
| Primitive |