22534013 has 2 divisors, whose sum is σ = 22534014. Its totient is φ = 22534012.

The previous prime is 22533983. The next prime is 22534033. The reversal of 22534013 is 31043522.

It is a happy number.

It is an a-pointer prime, because the next prime (22534033) can be obtained adding 22534013 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22534009 + 4 = 4747^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 22534013 - 2¹⁴ = 22517629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22534033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267006 + 11267007.

It is an arithmetic number, because the mean of its divisors is an integer number (11267007).

Almost surely, 2^22534013 is an apocalyptic number.

It is an amenable number.

22534013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22534013 is an equidigital number, since it uses as much as digits as its factorization.

22534013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22534013 is about 4747.0004213187. Note that the first 3 decimals coincide. The cubic root of 22534013 is about 282.4529924134.

Adding to 22534013 its reverse (31043522), we get a palindrome (53577535).

The spelling of 22534013 in words is "twenty-two million, five hundred thirty-four thousand, thirteen".