12786745 has 16 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 9979200.

The previous prime is 12786743. The next prime is 12786751. The reversal of 12786745 is 54768721.

It is not a de Polignac number, because 12786745 - 2¹ = 12786743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12786698 and 12786707.

It is not an unprimeable number, because it can be changed into a prime (12786743) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64156 + ... + 64354.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^12786745 is an apocalyptic number.

It is an amenable number.

12786745 is a deficient number, since it is larger than the sum of its proper divisors (2938055).

12786745 is a wasteful number, since it uses less digits than its factorization.

12786745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its digits is 94080, while the sum is 40.

The square root of 12786745 is about 3575.8558416133. The cubic root of 12786745 is about 233.8406456376.

It can be divided in two parts, 12786 and 745, that added together give a palindrome (13531).

The spelling of 12786745 in words is "twelve million, seven hundred eighty-six thousand, seven hundred forty-five".