137223 has 12 divisors (see below), whose sum is σ = 201760. Its totient is φ = 89856.
The previous prime is 137219. The next prime is 137239. The reversal of 137223 is 322731.
It is not a de Polignac number, because 137223 - 22 = 137219 is a prime.
It is a Duffinian number.
137223 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 137196 and 137205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (137273) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615 + ... + 807.
2137223 is an apocalyptic number.
137223 is a deficient number, since it is larger than the sum of its proper divisors (64537).
137223 is a wasteful number, since it uses less digits than its factorization.
137223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 278 (or 275 counting only the distinct ones).
The product of its digits is 252, while the sum is 18.
The square root of 137223 is about 370.4362293297. The cubic root of 137223 is about 51.5793228854.
Adding to 137223 its reverse (322731), we get a palindrome (459954).
The spelling of 137223 in words is "one hundred thirty-seven thousand, two hundred twenty-three".
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