12672565 has 32 divisors (see below), whose sum is σ = 17146080. Its totient is φ = 8945664.

The previous prime is 12672559. The next prime is 12672587. The reversal of 12672565 is 56527621.

12672565 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 16 ways, for example, as 576081 + 12096484 = 759^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 12672565 - 2³ = 12672557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12672565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130597 + ... + 130693.

It is an arithmetic number, because the mean of its divisors is an integer number (535815).

Almost surely, 2^12672565 is an apocalyptic number.

It is an amenable number.

12672565 is a deficient number, since it is larger than the sum of its proper divisors (4473515).

12672565 is a wasteful number, since it uses less digits than its factorization.

12672565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its digits is 25200, while the sum is 34.

The square root of 12672565 is about 3559.8546318635. The cubic root of 12672565 is about 233.1425322295.

The spelling of 12672565 in words is "twelve million, six hundred seventy-two thousand, five hundred sixty-five".