12766105 has 12 divisors (see below), whose sum is σ = 16839396. Its totient is φ = 9284000.

The previous prime is 12766087. The next prime is 12766109. The reversal of 12766105 is 50166721.

12766105 is digitally balanced in base 2, 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 3748096 + 9018009 = 1936^2 + 3003^2 .

It is not a de Polignac number, because 12766105 - 2¹⁵ = 12733337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12766109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9946 + ... + 11155.

It is an arithmetic number, because the mean of its divisors is an integer number (1403283).

Almost surely, 2^12766105 is an apocalyptic number.

It is an amenable number.

12766105 is a deficient number, since it is larger than the sum of its proper divisors (4073291).

12766105 is a wasteful number, since it uses less digits than its factorization.

12766105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21128 (or 21117 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12766105 is about 3572.9686536548. The cubic root of 12766105 is about 233.7147582395.

It can be divided in two parts, 1276 and 6105, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 12766105 in words is "twelve million, seven hundred sixty-six thousand, one hundred five".