12865180 has 24 divisors (see below), whose sum is σ = 27124272. Its totient is φ = 5125632.

The previous prime is 12865157. The next prime is 12865189. The reversal of 12865180 is 8156821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865189) 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 7 ways as a sum of consecutive naturals, for example, 4524 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (1130178).

Almost surely, 2^12865180 is an apocalyptic number.

12865180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12865180 is an abundant number, since it is smaller than the sum of its proper divisors (14259092).

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

12865180 is a wasteful number, since it uses less digits than its factorization.

12865180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 12865180 is about 3586.8063789393. The cubic root of 12865180 is about 234.3178042359.

The spelling of 12865180 in words is "twelve million, eight hundred sixty-five thousand, one hundred eighty".