12130745 has 8 divisors (see below), whose sum is σ = 15880320. Its totient is φ = 8822320.

The previous prime is 12130739. The next prime is 12130751. The reversal of 12130745 is 54703121.

12130745 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (12130739) and next prime (12130751).

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

It is not a de Polignac number, because 12130745 - 2⁶ = 12130681 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12130745.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 110225 + ... + 110334.

It is an arithmetic number, because the mean of its divisors is an integer number (1985040).

Almost surely, 2^12130745 is an apocalyptic number.

It is an amenable number.

12130745 is a deficient number, since it is larger than the sum of its proper divisors (3749575).

12130745 is a wasteful number, since it uses less digits than its factorization.

12130745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220575.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12130745 is about 3482.9219055270. The cubic root of 12130745 is about 229.7713228079.

Adding to 12130745 its reverse (54703121), we get a palindrome (66833866).

The spelling of 12130745 in words is "twelve million, one hundred thirty thousand, seven hundred forty-five".