22565147 has 8 divisors (see below), whose sum is σ = 24729600. Its totient is φ = 20419560.

The previous prime is 22565119. The next prime is 22565173. The reversal of 22565147 is 74156522.

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

It is a cyclic number.

It is not a de Polignac number, because 22565147 - 2¹⁰ = 22564123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22565107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (3091200).

Almost surely, 2^22565147 is an apocalyptic number.

22565147 is a deficient number, since it is larger than the sum of its proper divisors (2164453).

22565147 is a wasteful number, since it uses less digits than its factorization.

22565147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433.

The product of its digits is 16800, while the sum is 32.

The square root of 22565147 is about 4750.2786234073. The cubic root of 22565147 is about 282.5830157779.

The spelling of 22565147 in words is "twenty-two million, five hundred sixty-five thousand, one hundred forty-seven".