12259913 has 4 divisors (see below), whose sum is σ = 12591300. Its totient is φ = 11928528.

The previous prime is 12259879. The next prime is 12259937. The reversal of 12259913 is 31995221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5721664 + 6538249 = 2392^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 12259913 - 2⁸ = 12259657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12259913.

It is not an unprimeable number, because it can be changed into a prime (12259213) 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 3 ways as a sum of consecutive naturals, for example, 165638 + ... + 165711.

It is an arithmetic number, because the mean of its divisors is an integer number (3147825).

Almost surely, 2^12259913 is an apocalyptic number.

It is an amenable number.

12259913 is a deficient number, since it is larger than the sum of its proper divisors (331387).

12259913 is an equidigital number, since it uses as much as digits as its factorization.

12259913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331386.

The product of its digits is 4860, while the sum is 32.

The square root of 12259913 is about 3501.4158564786. The cubic root of 12259913 is about 230.5839791369.

The spelling of 12259913 in words is "twelve million, two hundred fifty-nine thousand, nine hundred thirteen".