12913189 has 8 divisors (see below), whose sum is σ = 13660992. Its totient is φ = 12180960.

The previous prime is 12913181. The next prime is 12913211. The reversal of 12913189 is 98131921.

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 12913189 - 2³ = 12913181 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 (12913181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (1707624).

Almost surely, 2^12913189 is an apocalyptic number.

It is an amenable number.

12913189 is a deficient number, since it is larger than the sum of its proper divisors (747803).

12913189 is an equidigital number, since it uses as much as digits as its factorization.

12913189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787.

The product of its digits is 3888, while the sum is 34.

The square root of 12913189 is about 3593.4925907813. The cubic root of 12913189 is about 234.6089103927.

The spelling of 12913189 in words is "twelve million, nine hundred thirteen thousand, one hundred eighty-nine".