22481453 has 2 divisors, whose sum is σ = 22481454. Its totient is φ = 22481452.

The previous prime is 22481383. The next prime is 22481507. The reversal of 22481453 is 35418422.

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., 22306729 + 174724 = 4723^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 22481453 - 2⁸ = 22481197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22484453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11240726 + 11240727.

It is an arithmetic number, because the mean of its divisors is an integer number (11240727).

Almost surely, 2^22481453 is an apocalyptic number.

It is an amenable number.

22481453 is a deficient number, since it is larger than the sum of its proper divisors (1).

22481453 is an equidigital number, since it uses as much as digits as its factorization.

22481453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 29.

The square root of 22481453 is about 4741.4610617404. The cubic root of 22481453 is about 282.2332166950.

Adding to 22481453 its reverse (35418422), we get a palindrome (57899875).

The spelling of 22481453 in words is "twenty-two million, four hundred eighty-one thousand, four hundred fifty-three".