18148116 has 96 divisors (see below), whose sum is σ = 51932160. Its totient is φ = 4817664.

The previous prime is 18148111. The next prime is 18148133. The reversal of 18148116 is 61184181.

It is a super-2 number, since 2×18148116² = 658708228698912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18148111) 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 31 ways as a sum of consecutive naturals, for example, 132400 + ... + 132536.

It is an arithmetic number, because the mean of its divisors is an integer number (540960).

Almost surely, 2^18148116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18148116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25966080).

18148116 is an abundant number, since it is smaller than the sum of its proper divisors (33784044).

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

18148116 is a wasteful number, since it uses less digits than its factorization.

18148116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its digits is 1536, while the sum is 30.

The square root of 18148116 is about 4260.0605629498. The cubic root of 18148116 is about 262.7910169315.

The spelling of 18148116 in words is "eighteen million, one hundred forty-eight thousand, one hundred sixteen".