20224133 has 2 divisors, whose sum is σ = 20224134. Its totient is φ = 20224132.

The previous prime is 20224129. The next prime is 20224157. The reversal of 20224133 is 33142202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18258529 + 1965604 = 4273^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 20224133 - 2² = 20224129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20224333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112066 + 10112067.

It is an arithmetic number, because the mean of its divisors is an integer number (10112067).

Almost surely, 2^20224133 is an apocalyptic number.

It is an amenable number.

20224133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224133 is an equidigital number, since it uses as much as digits as its factorization.

20224133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20224133 is about 4497.1249704672. The cubic root of 20224133 is about 272.4519815510.

Adding to 20224133 its reverse (33142202), we get a palindrome (53366335).

The spelling of 20224133 in words is "twenty million, two hundred twenty-four thousand, one hundred thirty-three".