12871455 has 24 divisors (see below), whose sum is σ = 21744432. Its totient is φ = 6500736.

The previous prime is 12871451. The next prime is 12871471. The reversal of 12871455 is 55417821.

It is not a de Polignac number, because 12871455 - 2² = 12871451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871451) 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 23 ways as a sum of consecutive naturals, for example, 4227 + ... + 6603.

It is an arithmetic number, because the mean of its divisors is an integer number (906018).

Almost surely, 2^12871455 is an apocalyptic number.

12871455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12871455 is a deficient number, since it is larger than the sum of its proper divisors (8872977).

12871455 is a wasteful number, since it uses less digits than its factorization.

12871455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2404 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 12871455 is about 3587.6810058867. The cubic root of 12871455 is about 234.3558942648.

The spelling of 12871455 in words is "twelve million, eight hundred seventy-one thousand, four hundred fifty-five".