12605303 has 4 divisors (see below), whose sum is σ = 13268760. Its totient is φ = 11941848.

The previous prime is 12605287. The next prime is 12605309. The reversal of 12605303 is 30350621.

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 12605303 - 2⁴ = 12605287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605309) 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 3 ways as a sum of consecutive naturals, for example, 331700 + ... + 331737.

It is an arithmetic number, because the mean of its divisors is an integer number (3317190).

Almost surely, 2^12605303 is an apocalyptic number.

12605303 is a deficient number, since it is larger than the sum of its proper divisors (663457).

12605303 is an equidigital number, since it uses as much as digits as its factorization.

12605303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663456.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 12605303 is about 3550.3947667830. The cubic root of 12605303 is about 232.7293178171.

Adding to 12605303 its reverse (30350621), we get a palindrome (42955924).

The spelling of 12605303 in words is "twelve million, six hundred five thousand, three hundred three".