12130785 has 12 divisors (see below), whose sum is σ = 21026772. Its totient is φ = 6469728.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130785 is 58703121.

12130785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5349969 + 6780816 = 2313^2 + 2604^2 .

It is not a de Polignac number, because 12130785 - 2⁵ = 12130753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134742 + ... + 134831.

It is an arithmetic number, because the mean of its divisors is an integer number (1752231).

Almost surely, 2^12130785 is an apocalyptic number.

12130785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12130785 is a deficient number, since it is larger than the sum of its proper divisors (8895987).

12130785 is a wasteful number, since it uses less digits than its factorization.

12130785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269584 (or 269581 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12130785 is about 3482.9276478273. The cubic root of 12130785 is about 229.7715753574.

The spelling of 12130785 in words is "twelve million, one hundred thirty thousand, seven hundred eighty-five".