12288865 has 8 divisors (see below), whose sum is σ = 15222528. Its totient is φ = 9513840.

The previous prime is 12288823. The next prime is 12288869. The reversal of 12288865 is 56888221.

It is a happy number.

12288865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12288865 - 2⁷ = 12288737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12288869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39487 + ... + 39796.

It is an arithmetic number, because the mean of its divisors is an integer number (1902816).

Almost surely, 2^12288865 is an apocalyptic number.

It is an amenable number.

12288865 is a deficient number, since it is larger than the sum of its proper divisors (2933663).

12288865 is an equidigital number, since it uses as much as digits as its factorization.

12288865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79319.

The product of its digits is 61440, while the sum is 40.

The square root of 12288865 is about 3505.5477460734. The cubic root of 12288865 is about 230.7653458178.

The spelling of 12288865 in words is "twelve million, two hundred eighty-eight thousand, eight hundred sixty-five".