13306 has 4 divisors (see below), whose sum is σ = 19962. Its totient is φ = 6652.
The previous prime is 13297. The next prime is 13309. The reversal of 13306 is 60331.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 13225 + 81 = 115^2 + 9^2 .
It is not an unprimeable number, because it can be changed into a prime (13309) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325 + ... + 3328.
213306 is an apocalyptic number.
13306 is a deficient number, since it is larger than the sum of its proper divisors (6656).
13306 is an equidigital number, since it uses as much as digits as its factorization.
13306 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6655.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 13306 is about 115.3516363126. The cubic root of 13306 is about 23.6964073198.
Adding to 13306 its reverse (60331), we get a palindrome (73637).
The spelling of 13306 in words is "thirteen thousand, three hundred six".
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