12018612 has 12 divisors (see below), whose sum is σ = 28043456. Its totient is φ = 4006200.

The previous prime is 12018577. The next prime is 12018613. The reversal of 12018612 is 21681021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500764 + ... + 500787.

Almost surely, 2^12018612 is an apocalyptic number.

12018612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12018612 is an abundant number, since it is smaller than the sum of its proper divisors (16024844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12018612 is a wasteful number, since it uses less digits than its factorization.

12018612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001558 (or 1001556 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12018612 is about 3466.7869850915. The cubic root of 12018612 is about 229.0611508221.

Adding to 12018612 its reverse (21681021), we get a palindrome (33699633).

The spelling of 12018612 in words is "twelve million, eighteen thousand, six hundred twelve".