22369 has 2 divisors, whose sum is σ = 22370.
Its totient is φ = 22368.
The previous prime is 22367. The next prime is 22381. The reversal of 22369 is 96322.
It can be divided in two parts, 223 and 69, that added together give a palindrome (292).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18769 + 3600 = 137^2 + 60^2
It is a cyclic number.
It is not a de Polignac number, because 22369 - 21 = 22367 is a prime.
It is a super-2 number, since 2×223692 = 1000744322, which contains 22 as substring.
Together with 22367, it forms a pair of twin primes.
It is a Chen prime.
22369 is a lucky number.
It is a plaindrome in base 10.
It is not a weakly prime, because it can be changed into another prime (22367) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11184 + 11185.
It is an arithmetic number, because the mean of its divisors is an integer number (11185).
222369 is an apocalyptic number.
It is an amenable number.
22369 is a deficient number, since it is larger than the sum of its proper divisors (1).
22369 is an equidigital number, since it uses as much as digits as its factorization.
22369 is an evil number, because the sum of its binary digits is even.
The product of its digits is 648, while the sum is 22.
The square root of 22369 is about 149.5626958837.
The cubic root of 22369 is about 28.1761849807.
The spelling of 22369 in words is "twenty-two thousand, three hundred sixty-nine".