12130542 has 24 divisors (see below), whose sum is σ = 26371800. Its totient is φ = 4029840.

The previous prime is 12130541. The next prime is 12130553. The reversal of 12130542 is 24503121.

12130542 is a `hidden beast` number, since 121 + 3 + 0 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5317 + ... + 7247.

It is an arithmetic number, because the mean of its divisors is an integer number (1098825).

Almost surely, 2^12130542 is an apocalyptic number.

12130542 is an abundant number, since it is smaller than the sum of its proper divisors (14241258).

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

12130542 is a wasteful number, since it uses less digits than its factorization.

12130542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12130542 is about 3482.8927632070. The cubic root of 12130542 is about 229.7700411103.

Adding to 12130542 its reverse (24503121), we get a palindrome (36633663).

The spelling of 12130542 in words is "twelve million, one hundred thirty thousand, five hundred forty-two".