12805130 has 24 divisors (see below), whose sum is σ = 24961932. Its totient is φ = 4727424.

The previous prime is 12805129. The next prime is 12805141. The reversal of 12805130 is 3150821.

It can be written as a sum of positive squares in 6 ways, for example, as 10201 + 12794929 = 101^2 + 3577^2 .

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, 2099 + ... + 5478.

Almost surely, 2^12805130 is an apocalyptic number.

12805130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12805130 is a deficient number, since it is larger than the sum of its proper divisors (12156802).

12805130 is a wasteful number, since it uses less digits than its factorization.

12805130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610 (or 7597 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12805130 is about 3578.4256314754. The cubic root of 12805130 is about 233.9526653227.

Adding to 12805130 its reverse (3150821), we get a palindrome (15955951).

The spelling of 12805130 in words is "twelve million, eight hundred five thousand, one hundred thirty".