12045556 has 12 divisors (see below), whose sum is σ = 21806820. Its totient is φ = 5815040.

The previous prime is 12045521. The next prime is 12045589. The reversal of 12045556 is 65554021.

It can be written as a sum of positive squares in 2 ways, for example, as 6937956 + 5107600 = 2634^2 + 2260^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51805 + ... + 52036.

It is an arithmetic number, because the mean of its divisors is an integer number (1817235).

Almost surely, 2^12045556 is an apocalyptic number.

It is an amenable number.

12045556 is a deficient number, since it is larger than the sum of its proper divisors (9761264).

12045556 is a wasteful number, since it uses less digits than its factorization.

12045556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103874 (or 103872 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 12045556 is about 3470.6708285287. The cubic root of 12045556 is about 229.2321971201.

Adding to 12045556 its reverse (65554021), we get a palindrome (77599577).

The spelling of 12045556 in words is "twelve million, forty-five thousand, five hundred fifty-six".