22012453 has 2 divisors, whose sum is σ = 22012454. Its totient is φ = 22012452.

The previous prime is 22012451. The next prime is 22012483. The reversal of 22012453 is 35421022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 10870209 = 3338^2 + 3297^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012453 - 2¹ = 22012451 is a prime.

Together with 22012451, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22012453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012451) 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 as a sum of consecutive naturals, namely, 11006226 + 11006227.

It is an arithmetic number, because the mean of its divisors is an integer number (11006227).

Almost surely, 2^22012453 is an apocalyptic number.

It is an amenable number.

22012453 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012453 is an equidigital number, since it uses as much as digits as its factorization.

22012453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22012453 is about 4691.7430662814. The cubic root of 22012453 is about 280.2567924807.

Adding to 22012453 its reverse (35421022), we get a palindrome (57433475).

The spelling of 22012453 in words is "twenty-two million, twelve thousand, four hundred fifty-three".