12758845 has 12 divisors (see below), whose sum is σ = 16829820. Its totient is φ = 9278720.

The previous prime is 12758839. The next prime is 12758873. The reversal of 12758845 is 54885721.

12758845 is digitally balanced in base 3, 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 9622404 + 3136441 = 3102^2 + 1771^2 .

It is not a de Polignac number, because 12758845 - 2¹¹ = 12756797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12758798 and 12758807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9940 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (1402485).

Almost surely, 2^12758845 is an apocalyptic number.

It is an amenable number.

12758845 is a deficient number, since it is larger than the sum of its proper divisors (4070975).

12758845 is a wasteful number, since it uses less digits than its factorization.

12758845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21116 (or 21105 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 12758845 is about 3571.9525472772. The cubic root of 12758845 is about 233.6704458227.

It can be divided in two parts, 12 and 758845, that added together give a palindrome (758857).

The spelling of 12758845 in words is "twelve million, seven hundred fifty-eight thousand, eight hundred forty-five".