137244 has 12 divisors (see below), whose sum is σ = 320264. Its totient is φ = 45744.

The previous prime is 137239. The next prime is 137251. The reversal of 137244 is 442731.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 137244.

It is a congruent number.

It is an unprimeable number.

137244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5707 + ... + 5730.

2¹³⁷²⁴⁴ is an apocalyptic number.

It is an amenable number.

137244 is an abundant number, since it is smaller than the sum of its proper divisors (183020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137244 is a wasteful number, since it uses less digits than its factorization.

137244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444 (or 11442 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 137244 is about 370.4645732051. The cubic root of 137244 is about 51.5819539082.

Adding to 137244 its reverse (442731), we get a palindrome (579975).

The spelling of 137244 in words is "one hundred thirty-seven thousand, two hundred forty-four".