12288929 has 4 divisors (see below), whose sum is σ = 12323520. Its totient is φ = 12254340.

The previous prime is 12288919. The next prime is 12288937. The reversal of 12288929 is 92988221.

12288929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92988221 = 251 ⋅370471.

It is a cyclic number.

It is not a de Polignac number, because 12288929 - 2⁸ = 12288673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12288919) 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, 16757 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (3080880).

Almost surely, 2^12288929 is an apocalyptic number.

It is an amenable number.

12288929 is a deficient number, since it is larger than the sum of its proper divisors (34591).

12288929 is an equidigital number, since it uses as much as digits as its factorization.

12288929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34590.

The product of its digits is 41472, while the sum is 41.

The square root of 12288929 is about 3505.5568744495. The cubic root of 12288929 is about 230.7657464232.

The spelling of 12288929 in words is "twelve million, two hundred eighty-eight thousand, nine hundred twenty-nine".