22236165 has 48 divisors (see below), whose sum is σ = 44698368. Its totient is φ = 10015488.

The previous prime is 22236139. The next prime is 22236191. The reversal of 22236165 is 56163222.

22236165 is a `hidden beast` number, since 22 + 23 + 616 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (22236139) and next prime (22236191).

It is not a de Polignac number, because 22236165 - 2⁵ = 22236133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22512 + ... + 23478.

It is an arithmetic number, because the mean of its divisors is an integer number (931216).

Almost surely, 2^22236165 is an apocalyptic number.

It is an amenable number.

22236165 is an abundant number, since it is smaller than the sum of its proper divisors (22462203).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22236165 is a wasteful number, since it uses less digits than its factorization.

22236165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1055 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22236165 is about 4715.5238309227. The cubic root of 22236165 is about 281.2030084453.

Adding to 22236165 its reverse (56163222), we get a palindrome (78399387).

The spelling of 22236165 in words is "twenty-two million, two hundred thirty-six thousand, one hundred sixty-five".