It is a self number, because there is not a number n which added to its sum of digits gives 312542.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312542.
It is an unprimeable number.
312542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2312542 is an apocalyptic number.
312542 is an equidigital number, since it uses as much as digits as its factorization.
312542 is an evil number, because the sum of its binary digits is even.
The square root of 312542 is about 559.0545590548. The cubic root of 312542 is about 67.8634804264.
Adding to 312542 its reverse (245213), we get a palindrome (557755).
The spelling of 312542 in words is "three hundred twelve thousand, five hundred forty-two".