Yes, whether you're a spender or a saver is something to think about.
If you're happy to live cheaply, that amount of money could last you for years, possibly the 17/18 years until your state pension kicks in (do you have full entitlement to this yet, check on gov.uk) although if you could do a bit of part time work, it would probably make a huge difference.
But if you like to spend, it could be gone in 5 years or less.
As well as the 1 euro houses in Italy, I've read about them in Spain too. Or there's lots of places in the UK or overseas, where you could buy a liveable small property for well under £100k if you don't fancy renovating a wreck, which would probably be a challenge abroad if you don't speak the language and can't do a lot of the work yourself.
If you're fit, active and outdoorsy, you could look at guiding for hiking, scuba diving, mountain biking pretty much anywhere in the world. Pay is low, but if you can sort yourself out accommodation-wise without spending all the money, you can make it work, if you're happy to live cheaply.
I know someone who moved to the Canaries in their 40s, taking a lump of money similar to yours, used some of it to buy a small but serviceable apartment and earns a bit of money leading guided scuba dives. That's what I would do.