12130505 has 8 divisors (see below), whose sum is σ = 14581824. Its totient is φ = 9687600.

The previous prime is 12130477. The next prime is 12130507. The reversal of 12130505 is 50503121.

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

It is not a de Polignac number, because 12130505 - 2⁶ = 12130441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 5210.

It is an arithmetic number, because the mean of its divisors is an integer number (1822728).

Almost surely, 2^12130505 is an apocalyptic number.

It is an amenable number.

12130505 is a deficient number, since it is larger than the sum of its proper divisors (2451319).

12130505 is an equidigital number, since it uses as much as digits as its factorization.

12130505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12130505 is about 3482.8874515264. The cubic root of 12130505 is about 229.7698074989.

Adding to 12130505 its reverse (50503121), we get a palindrome (62633626).

The spelling of 12130505 in words is "twelve million, one hundred thirty thousand, five hundred five".