12130540 has 12 divisors (see below), whose sum is σ = 25474176. Its totient is φ = 4852208.

The previous prime is 12130523. The next prime is 12130541. The reversal of 12130540 is 4503121.

12130540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12130541) 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, 303244 + ... + 303283.

It is an arithmetic number, because the mean of its divisors is an integer number (2122848).

Almost surely, 2^12130540 is an apocalyptic number.

12130540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130540 is an abundant number, since it is smaller than the sum of its proper divisors (13343636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12130540 is a wasteful number, since it uses less digits than its factorization.

12130540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606536 (or 606534 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12130540 is about 3482.8924760894. The cubic root of 12130540 is about 229.7700284827.

Adding to 12130540 its reverse (4503121), we get a palindrome (16633661).

The spelling of 12130540 in words is "twelve million, one hundred thirty thousand, five hundred forty".