12054645 has 48 divisors (see below), whose sum is σ = 22988160. Its totient is φ = 5816448.

The previous prime is 12054643. The next prime is 12054659. The reversal of 12054645 is 54645021.

12054645 is a `hidden beast` number, since 12 + 0 + 5 + 4 + 645 = 666.

12054645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12054645 - 2¹ = 12054643 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19359 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (478920).

Almost surely, 2^12054645 is an apocalyptic number.

12054645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12054645 is a deficient number, since it is larger than the sum of its proper divisors (10933515).

12054645 is a wasteful number, since it uses less digits than its factorization.

12054645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 12054645 is about 3471.9799826612. The cubic root of 12054645 is about 229.2898385060.

Adding to 12054645 its reverse (54645021), we get a palindrome (66699666).

The spelling of 12054645 in words is "twelve million, fifty-four thousand, six hundred forty-five".