12604189 has 8 divisors (see below), whose sum is σ = 13656440. Its totient is φ = 11632608.

The previous prime is 12604181. The next prime is 12604199. The reversal of 12604189 is 98140621.

It is a happy number.

12604189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8122500 + 4481689 = 2850^2 + 2117^2 .

It is not a de Polignac number, because 12604189 - 2³ = 12604181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12604189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12604181) 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, 672 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (1707055).

Almost surely, 2^12604189 is an apocalyptic number.

It is an amenable number.

12604189 is a deficient number, since it is larger than the sum of its proper divisors (1052251).

12604189 is an frugal number, since it uses more digits than its factorization.

12604189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12604189 is about 3550.2378793540. The cubic root of 12604189 is about 232.7224617582.

The spelling of 12604189 in words is "twelve million, six hundred four thousand, one hundred eighty-nine".