22345313 has 4 divisors (see below), whose sum is σ = 22426260. Its totient is φ = 22264368.

The previous prime is 22345303. The next prime is 22345321. The reversal of 22345313 is 31354322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31354322 = 2 ⋅15677161.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 18593344 = 1937^2 + 4312^2 .

It is a cyclic number.

It is not a de Polignac number, because 22345313 - 2⁶ = 22345249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22345303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40058 + ... + 40611.

It is an arithmetic number, because the mean of its divisors is an integer number (5606565).

Almost surely, 2^22345313 is an apocalyptic number.

It is an amenable number.

22345313 is a deficient number, since it is larger than the sum of its proper divisors (80947).

22345313 is an equidigital number, since it uses as much as digits as its factorization.

22345313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80946.

The product of its digits is 2160, while the sum is 23.

The square root of 22345313 is about 4727.0829271338. The cubic root of 22345313 is about 281.6623601845.

Adding to 22345313 its reverse (31354322), we get a palindrome (53699635).

Subtracting 22345313 from its reverse (31354322), we obtain a palindrome (9009009).

The spelling of 22345313 in words is "twenty-two million, three hundred forty-five thousand, three hundred thirteen".