22305313 has 4 divisors (see below), whose sum is σ = 22417600. Its totient is φ = 22193028.

The previous prime is 22305281. The next prime is 22305329. The reversal of 22305313 is 31350322.

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 22305313 - 2⁵ = 22305281 is a prime.

It is a super-3 number, since 3×22305313³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22375313) 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, 55845 + ... + 56242.

It is an arithmetic number, because the mean of its divisors is an integer number (5604400).

Almost surely, 2^22305313 is an apocalyptic number.

It is an amenable number.

22305313 is a deficient number, since it is larger than the sum of its proper divisors (112287).

22305313 is a wasteful number, since it uses less digits than its factorization.

22305313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112286.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 22305313 is about 4722.8500928994. The cubic root of 22305313 is about 281.4941933187.

Adding to 22305313 its reverse (31350322), we get a palindrome (53655635).

The spelling of 22305313 in words is "twenty-two million, three hundred five thousand, three hundred thirteen".