12018128 has 10 divisors (see below), whose sum is σ = 23285154. Its totient is φ = 6009056.

The previous prime is 12018107. The next prime is 12018163. The reversal of 12018128 is 82181021.

It is a happy number.

12018128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9168784 + 2849344 = 3028^2 + 1688^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375551 + ... + 375582.

Almost surely, 2^12018128 is an apocalyptic number.

It is an amenable number.

12018128 is a deficient number, since it is larger than the sum of its proper divisors (11267026).

12018128 is an equidigital number, since it uses as much as digits as its factorization.

12018128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751141 (or 751135 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 12018128 is about 3466.7171791192. The cubic root of 12018128 is about 229.0580759500.

Adding to 12018128 its reverse (82181021), we get a palindrome (94199149).

The spelling of 12018128 in words is "twelve million, eighteen thousand, one hundred twenty-eight".