12651245 has 24 divisors (see below), whose sum is σ = 16495776. Its totient is φ = 9307872.

The previous prime is 12651227. The next prime is 12651251. The reversal of 12651245 is 54215621.

It is not a de Polignac number, because 12651245 - 2¹⁰ = 12650221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 77534 + ... + 77696.

It is an arithmetic number, because the mean of its divisors is an integer number (687324).

Almost surely, 2^12651245 is an apocalyptic number.

It is an amenable number.

12651245 is a deficient number, since it is larger than the sum of its proper divisors (3844531).

12651245 is a wasteful number, since it uses less digits than its factorization.

12651245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 230 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 12651245 is about 3556.8588670342. The cubic root of 12651245 is about 233.0117144914.

Adding to 12651245 its reverse (54215621), we get a palindrome (66866866).

The spelling of 12651245 in words is "twelve million, six hundred fifty-one thousand, two hundred forty-five".