12745838 has 16 divisors (see below), whose sum is σ = 22064640. Its totient is φ = 5408856.

The previous prime is 12745813. The next prime is 12745853. The reversal of 12745838 is 83854721.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2978 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (1379040).

Almost surely, 2^12745838 is an apocalyptic number.

12745838 is a deficient number, since it is larger than the sum of its proper divisors (9318802).

12745838 is a wasteful number, since it uses less digits than its factorization.

12745838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951.

The product of its digits is 53760, while the sum is 38.

The square root of 12745838 is about 3570.1313701319. The cubic root of 12745838 is about 233.5910137400.

The spelling of 12745838 in words is "twelve million, seven hundred forty-five thousand, eight hundred thirty-eight".