12785180 has 12 divisors (see below), whose sum is σ = 26848920. Its totient is φ = 5114064.

The previous prime is 12785131. The next prime is 12785189. The reversal of 12785180 is 8158721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319610 + ... + 319649.

It is an arithmetic number, because the mean of its divisors is an integer number (2237410).

Almost surely, 2^12785180 is an apocalyptic number.

12785180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12785180 is an abundant number, since it is smaller than the sum of its proper divisors (14063740).

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

12785180 is a wasteful number, since it uses less digits than its factorization.

12785180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639268 (or 639266 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 12785180 is about 3575.6370061851. The cubic root of 12785180 is about 233.8311051449.

The spelling of 12785180 in words is "twelve million, seven hundred eighty-five thousand, one hundred eighty".