12130734 has 96 divisors (see below), whose sum is σ = 32044032. Its totient is φ = 3049200.

The previous prime is 12130681. The next prime is 12130739. The reversal of 12130734 is 43703121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12130734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130739) 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 47 ways as a sum of consecutive naturals, for example, 391299 + ... + 391329.

It is an arithmetic number, because the mean of its divisors is an integer number (333792).

Almost surely, 2^12130734 is an apocalyptic number.

12130734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12130734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16022016).

12130734 is an abundant number, since it is smaller than the sum of its proper divisors (19913298).

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

12130734 is a wasteful number, since it uses less digits than its factorization.

12130734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12130734 is about 3482.9203263928. The cubic root of 12130734 is about 229.7712533567.

Adding to 12130734 its reverse (43703121), we get a palindrome (55833855).

The spelling of 12130734 in words is "twelve million, one hundred thirty thousand, seven hundred thirty-four".