22134865 has 8 divisors (see below), whose sum is σ = 26639208. Its totient is φ = 17656320.

The previous prime is 22134851. The next prime is 22134877. The reversal of 22134865 is 56843122.

It can be written as a sum of positive squares in 4 ways, for example, as 4695889 + 17438976 = 2167^2 + 4176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22134865 - 2¹⁵ = 22102097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (3329901).

Almost surely, 2^22134865 is an apocalyptic number.

It is an amenable number.

22134865 is a deficient number, since it is larger than the sum of its proper divisors (4504343).

22134865 is a wasteful number, since it uses less digits than its factorization.

22134865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899.

The product of its digits is 11520, while the sum is 31.

The square root of 22134865 is about 4704.7704513610. The cubic root of 22134865 is about 280.7753383008.

Adding to 22134865 its reverse (56843122), we get a palindrome (78977987).

The spelling of 22134865 in words is "twenty-two million, one hundred thirty-four thousand, eight hundred sixty-five".