12871188 has 36 divisors (see below), whose sum is σ = 35494368. Its totient is φ = 3900240.

The previous prime is 12871181. The next prime is 12871207. The reversal of 12871188 is 88117821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15856 + ... + 16647.

Almost surely, 2^12871188 is an apocalyptic number.

12871188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12871188 is an abundant number, since it is smaller than the sum of its proper divisors (22623180).

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

12871188 is a wasteful number, since it uses less digits than its factorization.

12871188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32524 (or 32519 counting only the distinct ones).

The product of its digits is 7168, while the sum is 36.

The square root of 12871188 is about 3587.6437950276. The cubic root of 12871188 is about 234.3542737939.

The spelling of 12871188 in words is "twelve million, eight hundred seventy-one thousand, one hundred eighty-eight".