12189913 has 8 divisors (see below), whose sum is σ = 12773120. Its totient is φ = 11618640.

The previous prime is 12189911. The next prime is 12189917. The reversal of 12189913 is 31998121.

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 12189913 - 2¹ = 12189911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12189911) 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, 858 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (1596640).

Almost surely, 2^12189913 is an apocalyptic number.

It is an amenable number.

12189913 is a deficient number, since it is larger than the sum of its proper divisors (583207).

12189913 is an equidigital number, since it uses as much as digits as its factorization.

12189913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967.

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

The square root of 12189913 is about 3491.4055908760. The cubic root of 12189913 is about 230.1442887946.

The spelling of 12189913 in words is "twelve million, one hundred eighty-nine thousand, nine hundred thirteen".