2319 has 4 divisors (see below), whose sum is σ = 3096.
Its totient is φ = 1544.
The previous prime is 2311. The next prime is 2333. The reversal of 2319 is 9132.
Subtracting from 2319 its sum of digits (15), we obtain a square (2304 = 482).
2319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 2319 - 23 = 2311 is a prime.
It is a super-2 number, since 2×23192 = 10755522, which contains 22 as substring.
It is a D-number.
It is a nialpdrome in base 7 and base 14.
It is a junction number, because it is equal to n+sod(n) for n = 2298 and 2307.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2311) 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, 384 + ... + 389.
It is an arithmetic number, because the mean of its divisors is an integer number (774).
22319 is an apocalyptic number.
2319 is a deficient number, since it is larger than the sum of its proper divisors (777).
2319 is an equidigital number, since it uses as much as digits as its factorization.
2319 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 776.
The product of its digits is 54, while the sum is 15.
The square root of 2319 is about 48.1559965113.
The cubic root of 2319 is about 13.2363095808.
The spelling of 2319 in words is "two thousand, three hundred nineteen".