11239 has 2 divisors, whose sum is σ = 11240. Its totient is φ = 11238.

The previous prime is 11213. The next prime is 11243. The reversal of 11239 is 93211.

11239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11239 is a prime.

11239 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11279) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5619 + 5620.

It is an arithmetic number, because the mean of its divisors is an integer number (5620).

2¹¹²³⁹ is an apocalyptic number.

11239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11239 is an equidigital number, since it uses as much as digits as its factorization.

11239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 16.

The square root of 11239 is about 106.0141499990. The cubic root of 11239 is about 22.3997183213.

It can be divided in two parts, 112 and 39, that added together give a palindrome (151).

The spelling of 11239 in words is "eleven thousand, two hundred thirty-nine".