12104559 has 24 divisors (see below), whose sum is σ = 18338320. Its totient is φ = 7978176.

The previous prime is 12104557. The next prime is 12104569. The reversal of 12104559 is 95540121.

12104559 is a `hidden beast` number, since 1 + 2 + 104 + 559 = 666.

It is not a de Polignac number, because 12104559 - 2¹ = 12104557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26259 + ... + 26715.

Almost surely, 2^12104559 is an apocalyptic number.

12104559 is a deficient number, since it is larger than the sum of its proper divisors (6233761).

12104559 is an equidigital number, since it uses as much as digits as its factorization.

12104559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 12104559 is about 3479.1606746455. The cubic root of 12104559 is about 229.6058719518.

It can be divided in two parts, 121045 and 59, that added together give a square (121104 = 348²).

The spelling of 12104559 in words is "twelve million, one hundred four thousand, five hundred fifty-nine".