22561349 has 2 divisors, whose sum is σ = 22561350. Its totient is φ = 22561348.

The previous prime is 22561337. The next prime is 22561351. The reversal of 22561349 is 94316522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21390625 + 1170724 = 4625^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 22561349 - 2²⁴ = 5784133 is a prime.

Together with 22561351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22563349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11280674 + 11280675.

It is an arithmetic number, because the mean of its divisors is an integer number (11280675).

Almost surely, 2^22561349 is an apocalyptic number.

It is an amenable number.

22561349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22561349 is an equidigital number, since it uses as much as digits as its factorization.

22561349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 22561349 is about 4749.8788405600. The cubic root of 22561349 is about 282.5671607883.

The spelling of 22561349 in words is "twenty-two million, five hundred sixty-one thousand, three hundred forty-nine".