12766745 has 8 divisors (see below), whose sum is σ = 16221384. Its totient is φ = 9612544.

The previous prime is 12766717. The next prime is 12766759. The reversal of 12766745 is 54766721.

It can be written as a sum of positive squares in 4 ways, for example, as 2679769 + 10086976 = 1637^2 + 3176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12766745 - 2⁶ = 12766681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12766699 and 12766708.

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 7 ways as a sum of consecutive naturals, for example, 75014 + ... + 75183.

It is an arithmetic number, because the mean of its divisors is an integer number (2027673).

Almost surely, 2^12766745 is an apocalyptic number.

It is an amenable number.

12766745 is a deficient number, since it is larger than the sum of its proper divisors (3454639).

12766745 is a wasteful number, since it uses less digits than its factorization.

12766745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150219.

The product of its digits is 70560, while the sum is 38.

The square root of 12766745 is about 3573.0582139114. The cubic root of 12766745 is about 233.7186637623.

The spelling of 12766745 in words is "twelve million, seven hundred sixty-six thousand, seven hundred forty-five".