12104145 has 48 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 6147072.

The previous prime is 12104111. The next prime is 12104177. The reversal of 12104145 is 54140121.

12104145 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12104145 - 2¹⁸ = 11842001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124737 + ... + 124833.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^12104145 is an apocalyptic number.

12104145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12104145 is a deficient number, since it is larger than the sum of its proper divisors (9910575).

12104145 is a wasteful number, since it uses less digits than its factorization.

12104145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 12104145 is about 3479.1011770283. The cubic root of 12104145 is about 229.6032542627.

Adding to 12104145 its reverse (54140121), we get a palindrome (66244266).

The spelling of 12104145 in words is "twelve million, one hundred four thousand, one hundred forty-five".