18112546 has 16 divisors (see below), whose sum is σ = 29012544. Its totient is φ = 8460144.

The previous prime is 18112543. The next prime is 18112553. The reversal of 18112546 is 64521181.

It is not an unprimeable number, because it can be changed into a prime (18112543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2601 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (1813284).

Almost surely, 2^18112546 is an apocalyptic number.

18112546 is a deficient number, since it is larger than the sum of its proper divisors (10899998).

18112546 is a wasteful number, since it uses less digits than its factorization.

18112546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225.

The product of its digits is 1920, while the sum is 28.

The square root of 18112546 is about 4255.8836920198. The cubic root of 18112546 is about 262.6192159927.

The spelling of 18112546 in words is "eighteen million, one hundred twelve thousand, five hundred forty-six".