12018056 has 16 divisors (see below), whose sum is σ = 22595100. Its totient is φ = 5992704.

The previous prime is 12018053. The next prime is 12018059. The reversal of 12018056 is 65081021.

It is an interprime number because it is at equal distance from previous prime (12018053) and next prime (12018059).

It can be written as a sum of positive squares in 2 ways, for example, as 12013156 + 4900 = 3466^2 + 70^2 .

It is not an unprimeable number, because it can be changed into a prime (12018053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436 + ... + 5108.

Almost surely, 2^12018056 is an apocalyptic number.

It is an amenable number.

12018056 is a deficient number, since it is larger than the sum of its proper divisors (10577044).

12018056 is a wasteful number, since it uses less digits than its factorization.

12018056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4084 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 12018056 is about 3466.7067946395. The cubic root of 12018056 is about 229.0576185239.

Adding to 12018056 its reverse (65081021), we get a palindrome (77099077).

The spelling of 12018056 in words is "twelve million, eighteen thousand, fifty-six".