It is a semiprime because it is the product of two primes.
It is a self number, because there is not a number n which added to its sum of digits gives 137422.
It is a congruent number.
It is an unprimeable number.
137422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2137422 is an apocalyptic number.
137422 is an equidigital number, since it uses as much as digits as its factorization.
137422 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68713.
The square root of 137422 is about 370.7047342563. The cubic root of 137422 is about 51.6042441875.
The spelling of 137422 in words is "one hundred thirty-seven thousand, four hundred twenty-two".