12871485 has 24 divisors (see below), whose sum is σ = 24339744. Its totient is φ = 6240480.

The previous prime is 12871471. The next prime is 12871487. The reversal of 12871485 is 58417821.

It is not a de Polignac number, because 12871485 - 2⁹ = 12870973 is a prime.

It is a super-2 number, since 2×12871485² = 331350252210450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871487) 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, 12507 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (1014156).

Almost surely, 2^12871485 is an apocalyptic number.

12871485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12871485 is a deficient number, since it is larger than the sum of its proper divisors (11468259).

12871485 is a wasteful number, since it uses less digits than its factorization.

12871485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025 (or 26022 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 12871485 is about 3587.6851868580. The cubic root of 12871485 is about 234.3560763388.

It can be divided in two parts, 1287 and 1485, that added together give a palindrome (2772).

The spelling of 12871485 in words is "twelve million, eight hundred seventy-one thousand, four hundred eighty-five".