1339 has 4 divisors (see below), whose sum is σ = 1456. Its totient is φ = 1224.

The previous prime is 1327. The next prime is 1361. The reversal of 1339 is 9331.

It is a happy number.

1339 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1339 - 2⁵ = 1307 is a prime.

1339 is a modest number, since divided by 39 gives 13 as remainder.

1339 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 64.

It is an arithmetic number, because the mean of its divisors is an integer number (364).

2¹³³⁹ is an apocalyptic number.

1339 is a deficient number, since it is larger than the sum of its proper divisors (117).

1339 is a wasteful number, since it uses less digits than its factorization.

1339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its digits is 81, while the sum is 16.

The square root of 1339 is about 36.5923489271. The cubic root of 1339 is about 11.0219945599.

The spelling of 1339 in words is "one thousand, three hundred thirty-nine".