137289 has 4 divisors (see below), whose sum is σ = 183056. Its totient is φ = 91524.

The previous prime is 137279. The next prime is 137303. The reversal of 137289 is 982731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 137289 - 2⁴ = 137273 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (137209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22879 + ... + 22884.

It is an arithmetic number, because the mean of its divisors is an integer number (45764).

2¹³⁷²⁸⁹ is an apocalyptic number.

It is an amenable number.

137289 is a deficient number, since it is larger than the sum of its proper divisors (45767).

137289 is an equidigital number, since it uses as much as digits as its factorization.

137289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45766.

The product of its digits is 3024, while the sum is 30.

The square root of 137289 is about 370.5253027797. The cubic root of 137289 is about 51.5875909106.

It can be divided in two parts, 137 and 289, that multiplied together give a palindrome (39593).

The spelling of 137289 in words is "one hundred thirty-seven thousand, two hundred eighty-nine".