18112612 has 12 divisors (see below), whose sum is σ = 36225280. Its totient is φ = 7762536.

The previous prime is 18112609. The next prime is 18112621. The reversal of 18112612 is 21621181.

18112612 is an admirable 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, 323412 + ... + 323467.

Almost surely, 2^18112612 is an apocalyptic number.

It is an amenable number.

18112612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18112612 is a wasteful number, since it uses less digits than its factorization.

18112612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646890 (or 646888 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 18112612 is about 4255.8914459840. The cubic root of 18112612 is about 262.6195349769.

Adding to 18112612 its reverse (21621181), we get a palindrome (39733793).

The spelling of 18112612 in words is "eighteen million, one hundred twelve thousand, six hundred twelve".