137222 has 4 divisors (see below), whose sum is σ = 205836. Its totient is φ = 68610.

The previous prime is 137219. The next prime is 137239. The reversal of 137222 is 222731.

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 137222.

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 137222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34304 + ... + 34307.

It is an arithmetic number, because the mean of its divisors is an integer number (51459).

2¹³⁷²²² is an apocalyptic number.

137222 is a deficient number, since it is larger than the sum of its proper divisors (68614).

137222 is an equidigital number, since it uses as much as digits as its factorization.

137222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68613.

The product of its digits is 168, while the sum is 17.

The square root of 137222 is about 370.4348795672. The cubic root of 137222 is about 51.5791975919.

Adding to 137222 its reverse (222731), we get a palindrome (359953).

The spelling of 137222 in words is "one hundred thirty-seven thousand, two hundred twenty-two".