22233613 has 2 divisors, whose sum is σ = 22233614. Its totient is φ = 22233612.

The previous prime is 22233611. The next prime is 22233641. The reversal of 22233613 is 31633222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 162409 = 4698^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 22233613 - 2¹ = 22233611 is a prime.

Together with 22233611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22233611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11116806 + 11116807.

It is an arithmetic number, because the mean of its divisors is an integer number (11116807).

Almost surely, 2^22233613 is an apocalyptic number.

It is an amenable number.

22233613 is a deficient number, since it is larger than the sum of its proper divisors (1).

22233613 is an equidigital number, since it uses as much as digits as its factorization.

22233613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 22.

The square root of 22233613 is about 4715.2532275584. The cubic root of 22233613 is about 281.1922503322.

Adding to 22233613 its reverse (31633222), we get a palindrome (53866835).

The spelling of 22233613 in words is "twenty-two million, two hundred thirty-three thousand, six hundred thirteen".