22513133 has 2 divisors, whose sum is σ = 22513134. Its totient is φ = 22513132.

The previous prime is 22513129. The next prime is 22513147. The reversal of 22513133 is 33131522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 26569 = 4742^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 22513133 - 2² = 22513129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22513033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11256566 + 11256567.

It is an arithmetic number, because the mean of its divisors is an integer number (11256567).

Almost surely, 2^22513133 is an apocalyptic number.

It is an amenable number.

22513133 is a deficient number, since it is larger than the sum of its proper divisors (1).

22513133 is an equidigital number, since it uses as much as digits as its factorization.

22513133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 20.

The square root of 22513133 is about 4744.8006280559. The cubic root of 22513133 is about 282.3657252084.

Adding to 22513133 its reverse (33131522), we get a palindrome (55644655).

The spelling of 22513133 in words is "twenty-two million, five hundred thirteen thousand, one hundred thirty-three".