12142018 has 32 divisors (see below), whose sum is σ = 21777408. Its totient is φ = 4968000.

The previous prime is 12142001. The next prime is 12142019. The reversal of 12142018 is 81024121.

It is a happy number.

It is a super-2 number, since 2×12142018² = 294857202224648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12141986 and 12142004.

It is not an unprimeable number, because it can be changed into a prime (12142019) 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 15 ways as a sum of consecutive naturals, for example, 43696 + ... + 43972.

It is an arithmetic number, because the mean of its divisors is an integer number (680544).

Almost surely, 2^12142018 is an apocalyptic number.

12142018 is a deficient number, since it is larger than the sum of its proper divisors (9635390).

12142018 is a wasteful number, since it uses less digits than its factorization.

12142018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12142018 is about 3484.5398548445. The cubic root of 12142018 is about 229.8424756289.

Adding to 12142018 its reverse (81024121), we get a palindrome (93166139).

The spelling of 12142018 in words is "twelve million, one hundred forty-two thousand, eighteen".