7313 has 4 divisors (see below), whose sum is σ = 7488.
Its totient is φ = 7140.
The previous prime is 7309. The next prime is 7321. The reversal of 7313 is 3137.
It can be divided in two parts, 73 and 13, that multiplied together give a palindrome (949).
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 a cyclic number.
It is not a de Polignac number, because 7313 - 22 = 7309 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a plaindrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (7333) 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, 20 + ... + 122.
It is an arithmetic number, because the mean of its divisors is an integer number (1872).
27313 is an apocalyptic number.
It is an amenable number.
7313 is a deficient number, since it is larger than the sum of its proper divisors (175).
7313 is a wasteful number, since it uses less digits than its factorization.
7313 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174.
The product of its digits is 63, while the sum is 14.
The square root of 7313 is about 85.5160803592.
The cubic root of 7313 is about 19.4102825711.
The spelling of 7313 in words is "seven thousand, three hundred thirteen".