12130189 has 4 divisors (see below), whose sum is σ = 12768640. Its totient is φ = 11491740.

The previous prime is 12130169. The next prime is 12130259. The reversal of 12130189 is 98103121.

12130189 = 790² + 791² + ... + 808².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12130189 - 2¹¹ = 12128141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130109) 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 3 ways as a sum of consecutive naturals, for example, 319197 + ... + 319234.

It is an arithmetic number, because the mean of its divisors is an integer number (3192160).

Almost surely, 2^12130189 is an apocalyptic number.

12130189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12130189 is a deficient number, since it is larger than the sum of its proper divisors (638451).

12130189 is an equidigital number, since it uses as much as digits as its factorization.

12130189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638450.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 12130189 is about 3482.8420865724. The cubic root of 12130189 is about 229.7678123115.

The spelling of 12130189 in words is "twelve million, one hundred thirty thousand, one hundred eighty-nine".