12130906 has 8 divisors (see below), whose sum is σ = 18211284. Its totient is φ = 6060480.

The previous prime is 12130901. The next prime is 12130907. The reversal of 12130906 is 60903121.

12130906 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 11498881 + 632025 = 3391^2 + 795^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12130901) 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, 2866 + ... + 5698.

Almost surely, 2^12130906 is an apocalyptic number.

12130906 is a deficient number, since it is larger than the sum of its proper divisors (6080378).

12130906 is a wasteful number, since it uses less digits than its factorization.

12130906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 12130906 is about 3482.9450182281. The cubic root of 12130906 is about 229.7723393165.

The spelling of 12130906 in words is "twelve million, one hundred thirty thousand, nine hundred six".