22423133 has 2 divisors, whose sum is σ = 22423134. Its totient is φ = 22423132.

The previous prime is 22423087. The next prime is 22423169. The reversal of 22423133 is 33132422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20457529 + 1965604 = 4523^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 22423133 - 2¹² = 22419037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22423733) 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, 11211566 + 11211567.

It is an arithmetic number, because the mean of its divisors is an integer number (11211567).

Almost surely, 2^22423133 is an apocalyptic number.

It is an amenable number.

22423133 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423133 is an equidigital number, since it uses as much as digits as its factorization.

22423133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 20.

The square root of 22423133 is about 4735.3070650170. The cubic root of 22423133 is about 281.9889546837.

Adding to 22423133 its reverse (33132422), we get a palindrome (55555555).

The spelling of 22423133 in words is "twenty-two million, four hundred twenty-three thousand, one hundred thirty-three".