137242 has 8 divisors (see below), whose sum is σ = 235296. Its totient is φ = 58812.

The previous prime is 137239. The next prime is 137251. The reversal of 137242 is 242731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (29412).

2¹³⁷²⁴² is an apocalyptic number.

137242 is a deficient number, since it is larger than the sum of its proper divisors (98054).

137242 is an equidigital number, since it uses as much as digits as its factorization.

137242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812.

The product of its digits is 336, while the sum is 19.

The square root of 137242 is about 370.4618738818. The cubic root of 137242 is about 51.5817033462.

Adding to 137242 its reverse (242731), we get a palindrome (379973).

The spelling of 137242 in words is "one hundred thirty-seven thousand, two hundred forty-two".