22144273 has 2 divisors, whose sum is σ = 22144274. Its totient is φ = 22144272.

The previous prime is 22144267. The next prime is 22144289. The reversal of 22144273 is 37244122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16224784 + 5919489 = 4028^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 22144273 - 2⁹ = 22143761 is a prime.

It is not a weakly prime, because it can be changed into another prime (22144873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072136 + 11072137.

It is an arithmetic number, because the mean of its divisors is an integer number (11072137).

Almost surely, 2^22144273 is an apocalyptic number.

It is an amenable number.

22144273 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144273 is an equidigital number, since it uses as much as digits as its factorization.

22144273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 25.

The square root of 22144273 is about 4705.7701813837. The cubic root of 22144273 is about 280.8151120578.

Adding to 22144273 its reverse (37244122), we get a palindrome (59388395).

The spelling of 22144273 in words is "twenty-two million, one hundred forty-four thousand, two hundred seventy-three".