12117589 has 8 divisors (see below), whose sum is σ = 13436640. Its totient is φ = 10834800.

The previous prime is 12117571. The next prime is 12117607. The reversal of 12117589 is 98571121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12117571) and next prime (12117607).

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 12117589 - 2⁷ = 12117461 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 (12117569) 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 7 ways as a sum of consecutive naturals, for example, 8359 + ... + 9700.

It is an arithmetic number, because the mean of its divisors is an integer number (1679580).

Almost surely, 2^12117589 is an apocalyptic number.

It is an amenable number.

12117589 is a deficient number, since it is larger than the sum of its proper divisors (1319051).

12117589 is a wasteful number, since it uses less digits than its factorization.

12117589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18131.

The product of its digits is 5040, while the sum is 34.

The square root of 12117589 is about 3481.0327490559. The cubic root of 12117589 is about 229.6882291214.

The spelling of 12117589 in words is "twelve million, one hundred seventeen thousand, five hundred eighty-nine".