It is a tourney crank, I assume it is riveted together. Going to need a new crank and NO I don't think 36t crank is a good idea unless you are in extremely good shape. You want a 32 or less if you are going 1x. Pick up a cheap square square tooth 1x crank, first one that popped up when I google it was $40 on amazon. The other option is see if anybody in a local mtn bike facebook group will just give you one, they are worthless, and buy a narrow wide ring for $20. Then you can move on to the Microshift or Box, Box also have some good cheap 1x setups.