12520336 has 20 divisors (see below), whose sum is σ = 24356700. Its totient is φ = 6234752.

The previous prime is 12520309. The next prime is 12520337. The reversal of 12520336 is 63302521.

12520336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5550736 + 6969600 = 2356^2 + 2640^2 .

It is not an unprimeable number, because it can be changed into a prime (12520337) 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, 2850 + ... + 5758.

It is an arithmetic number, because the mean of its divisors is an integer number (1217835).

Almost surely, 2^12520336 is an apocalyptic number.

12520336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12520336 is a deficient number, since it is larger than the sum of its proper divisors (11836364).

12520336 is a wasteful number, since it uses less digits than its factorization.

12520336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 12520336 is about 3538.4086818795. The cubic root of 12520336 is about 232.2052286259.

Adding to 12520336 its reverse (63302521), we get a palindrome (75822857).

The spelling of 12520336 in words is "twelve million, five hundred twenty thousand, three hundred thirty-six".