12712130 has 8 divisors (see below), whose sum is σ = 22881852. Its totient is φ = 5084848.

The previous prime is 12712099. The next prime is 12712187. The reversal of 12712130 is 3121721.

It can be written as a sum of positive squares in 2 ways, for example, as 12694969 + 17161 = 3563^2 + 131^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12712099 and 12712108.

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, 635597 + ... + 635616.

Almost surely, 2^12712130 is an apocalyptic number.

12712130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12712130 is a deficient number, since it is larger than the sum of its proper divisors (10169722).

12712130 is a wasteful number, since it uses less digits than its factorization.

12712130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271220.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12712130 is about 3565.4074101006. The cubic root of 12712130 is about 233.3849115003.

Adding to 12712130 its reverse (3121721), we get a palindrome (15833851).

The spelling of 12712130 in words is "twelve million, seven hundred twelve thousand, one hundred thirty".