22331065 has 16 divisors (see below), whose sum is σ = 27391248. Its totient is φ = 17473536.

The previous prime is 22331053. The next prime is 22331159. The reversal of 22331065 is 56013322.

It can be written as a sum of positive squares in 8 ways, for example, as 4149369 + 18181696 = 2037^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 22331065 - 2¹¹ = 22329017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70287 + ... + 70603.

It is an arithmetic number, because the mean of its divisors is an integer number (1711953).

Almost surely, 2^22331065 is an apocalyptic number.

It is an amenable number.

22331065 is a deficient number, since it is larger than the sum of its proper divisors (5060183).

22331065 is a wasteful number, since it uses less digits than its factorization.

22331065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 22331065 is about 4725.5756263126. The cubic root of 22331065 is about 281.6024821754.

Adding to 22331065 its reverse (56013322), we get a palindrome (78344387).

The spelling of 22331065 in words is "twenty-two million, three hundred thirty-one thousand, sixty-five".