12641189 has 8 divisors (see below), whose sum is σ = 14051232. Its totient is φ = 11274640.

The previous prime is 12641179. The next prime is 12641203. The reversal of 12641189 is 98114621.

12641189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12641189 - 2¹⁶ = 12575653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641119) 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, 10259 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (1756404).

Almost surely, 2^12641189 is an apocalyptic number.

It is an amenable number.

12641189 is a deficient number, since it is larger than the sum of its proper divisors (1410043).

12641189 is a wasteful number, since it uses less digits than its factorization.

12641189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21747.

The product of its digits is 3456, while the sum is 32.

The square root of 12641189 is about 3555.4449791833. Note that the first 3 decimals coincide. The cubic root of 12641189 is about 232.9499607034.

The spelling of 12641189 in words is "twelve million, six hundred forty-one thousand, one hundred eighty-nine".