12687130 has 8 divisors (see below), whose sum is σ = 22836852. Its totient is φ = 5074848.

The previous prime is 12687119. The next prime is 12687149. The reversal of 12687130 is 3178621.

It can be written as a sum of positive squares in 2 ways, for example, as 12453841 + 233289 = 3529^2 + 483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 634347 + ... + 634366.

Almost surely, 2^12687130 is an apocalyptic number.

12687130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12687130 is a deficient number, since it is larger than the sum of its proper divisors (10149722).

12687130 is a wasteful number, since it uses less digits than its factorization.

12687130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268720.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12687130 is about 3561.8997739970. The cubic root of 12687130 is about 233.2318175181.

The spelling of 12687130 in words is "twelve million, six hundred eighty-seven thousand, one hundred thirty".