22785241 has 2 divisors, whose sum is σ = 22785242. Its totient is φ = 22785240.

The previous prime is 22785211. The next prime is 22785247. The reversal of 22785241 is 14258722.

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., 19545241 + 3240000 = 4421^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 22785241 - 2⁵ = 22785209 is a prime.

It is not a weakly prime, because it can be changed into another prime (22785247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11392620 + 11392621.

It is an arithmetic number, because the mean of its divisors is an integer number (11392621).

Almost surely, 2^22785241 is an apocalyptic number.

It is an amenable number.

22785241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22785241 is an equidigital number, since it uses as much as digits as its factorization.

22785241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 31.

The square root of 22785241 is about 4773.3888381317. The cubic root of 22785241 is about 283.4987894817.

The spelling of 22785241 in words is "twenty-two million, seven hundred eighty-five thousand, two hundred forty-one".