12909130 has 32 divisors (see below), whose sum is σ = 25200000. Its totient is φ = 4732992.

The previous prime is 12909109. The next prime is 12909131. The reversal of 12909130 is 3190921.

12909130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12909095 and 12909104.

It is not an unprimeable number, because it can be changed into a prime (12909131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25621 + ... + 26119.

It is an arithmetic number, because the mean of its divisors is an integer number (787500).

Almost surely, 2^12909130 is an apocalyptic number.

12909130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12909130 is a deficient number, since it is larger than the sum of its proper divisors (12290870).

12909130 is a wasteful number, since it uses less digits than its factorization.

12909130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 12909130 is about 3592.9277755057. The cubic root of 12909130 is about 234.5843262934.

The spelling of 12909130 in words is "twelve million, nine hundred nine thousand, one hundred thirty".