12807261 has 8 divisors (see below), whose sum is σ = 18973760. Its totient is φ = 8538156.

The previous prime is 12807233. The next prime is 12807317. The reversal of 12807261 is 16270821.

It is not a de Polignac number, because 12807261 - 2⁵ = 12807229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 474343 = 12807261 / (1 + 2 + 8 + 0 + 7 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12807461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237145 + ... + 237198.

It is an arithmetic number, because the mean of its divisors is an integer number (2371720).

Almost surely, 2^12807261 is an apocalyptic number.

It is an amenable number.

12807261 is a deficient number, since it is larger than the sum of its proper divisors (6166499).

12807261 is an equidigital number, since it uses as much as digits as its factorization.

12807261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474352 (or 474346 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12807261 is about 3578.7233757305. The cubic root of 12807261 is about 233.9656425559.

The spelling of 12807261 in words is "twelve million, eight hundred seven thousand, two hundred sixty-one".