22865147 has 4 divisors (see below), whose sum is σ = 22907496. Its totient is φ = 22822800.

The previous prime is 22865107. The next prime is 22865173. The reversal of 22865147 is 74156822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22865147 - 2¹⁰ = 22864123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22865107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20354 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (5726874).

Almost surely, 2^22865147 is an apocalyptic number.

22865147 is a deficient number, since it is larger than the sum of its proper divisors (42349).

22865147 is an equidigital number, since it uses as much as digits as its factorization.

22865147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42348.

The product of its digits is 26880, while the sum is 35.

The square root of 22865147 is about 4781.7514573637. The cubic root of 22865147 is about 283.8298052870.

The spelling of 22865147 in words is "twenty-two million, eight hundred sixty-five thousand, one hundred forty-seven".