22545317 has 2 divisors, whose sum is σ = 22545318. Its totient is φ = 22545316.

The previous prime is 22545293. The next prime is 22545329. The reversal of 22545317 is 71354522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20511841 + 2033476 = 4529^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 22545317 - 2⁶ = 22545253 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22545317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22545337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11272658 + 11272659.

It is an arithmetic number, because the mean of its divisors is an integer number (11272659).

Almost surely, 2^22545317 is an apocalyptic number.

It is an amenable number.

22545317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22545317 is an equidigital number, since it uses as much as digits as its factorization.

22545317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 22545317 is about 4748.1909186552. The cubic root of 22545317 is about 282.5002145820.

Adding to 22545317 its reverse (71354522), we get a palindrome (93899839).

The spelling of 22545317 in words is "twenty-two million, five hundred forty-five thousand, three hundred seventeen".