18146812 has 6 divisors (see below), whose sum is σ = 31756928. Its totient is φ = 9073404.

The previous prime is 18146797. The next prime is 18146813. The reversal of 18146812 is 21864181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18146813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268348 + ... + 2268355.

Almost surely, 2^18146812 is an apocalyptic number.

It is an amenable number.

18146812 is a deficient number, since it is larger than the sum of its proper divisors (13610116).

18146812 is a wasteful number, since it uses less digits than its factorization.

18146812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536707 (or 4536705 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 18146812 is about 4259.9075107331. The cubic root of 18146812 is about 262.7847226566.

The spelling of 18146812 in words is "eighteen million, one hundred forty-six thousand, eight hundred twelve".