12871215 has 48 divisors (see below), whose sum is σ = 26395200. Its totient is φ = 5677056.

The previous prime is 12871207. The next prime is 12871241. The reversal of 12871215 is 51217821.

12871215 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12871215 - 2³ = 12871207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8431 + ... + 9839.

It is an arithmetic number, because the mean of its divisors is an integer number (549900).

Almost surely, 2^12871215 is an apocalyptic number.

12871215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12871215 is an abundant number, since it is smaller than the sum of its proper divisors (13523985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12871215 is a wasteful number, since it uses less digits than its factorization.

12871215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1453 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 12871215 is about 3587.6475579410. The cubic root of 12871215 is about 234.3544376627.

The spelling of 12871215 in words is "twelve million, eight hundred seventy-one thousand, two hundred fifteen".