12765271 has 4 divisors (see below), whose sum is σ = 12878352. Its totient is φ = 12652192.

The previous prime is 12765251. The next prime is 12765293. The reversal of 12765271 is 17256721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12765271 - 2⁷ = 12765143 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765241) 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 3 ways as a sum of consecutive naturals, for example, 56371 + ... + 56596.

It is an arithmetic number, because the mean of its divisors is an integer number (3219588).

Almost surely, 2^12765271 is an apocalyptic number.

12765271 is a deficient number, since it is larger than the sum of its proper divisors (113081).

12765271 is a wasteful number, since it uses less digits than its factorization.

12765271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113080.

The product of its digits is 5880, while the sum is 31.

The square root of 12765271 is about 3572.8519420765. The cubic root of 12765271 is about 233.7096686591.

The spelling of 12765271 in words is "twelve million, seven hundred sixty-five thousand, two hundred seventy-one".