12104445 has 16 divisors (see below), whose sum is σ = 19586880. Its totient is φ = 6382464.

The previous prime is 12104441. The next prime is 12104453. The reversal of 12104445 is 54440121.

It is a happy number.

It is not a de Polignac number, because 12104445 - 2² = 12104441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199 + ... + 5868.

It is an arithmetic number, because the mean of its divisors is an integer number (1224180).

Almost surely, 2^12104445 is an apocalyptic number.

12104445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12104445 is a deficient number, since it is larger than the sum of its proper divisors (7482435).

12104445 is an equidigital number, since it uses as much as digits as its factorization.

12104445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12104445 is about 3479.1442913452. The cubic root of 12104445 is about 229.6051511448.

Adding to 12104445 its reverse (54440121), we get a palindrome (66544566).

The spelling of 12104445 in words is "twelve million, one hundred four thousand, four hundred forty-five".