12289265 has 8 divisors (see below), whose sum is σ = 14803560. Its totient is φ = 9793792.

The previous prime is 12289261. The next prime is 12289267. The reversal of 12289265 is 56298221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 952576 + 11336689 = 976^2 + 3367^2 .

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 12289265 - 2² = 12289261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12289261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3224 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (1850445).

Almost surely, 2^12289265 is an apocalyptic number.

It is an amenable number.

12289265 is a deficient number, since it is larger than the sum of its proper divisors (2514295).

12289265 is an equidigital number, since it uses as much as digits as its factorization.

12289265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9411.

The product of its digits is 17280, while the sum is 35.

The square root of 12289265 is about 3505.6047980341. The cubic root of 12289265 is about 230.7678495786.

The spelling of 12289265 in words is "twelve million, two hundred eighty-nine thousand, two hundred sixty-five".