18100112 has 20 divisors (see below), whose sum is σ = 35216496. Its totient is φ = 9012000.

The previous prime is 18100111. The next prime is 18100151. The reversal of 18100112 is 21100181.

It is a super-2 number, since 2×18100112² = 655228108825088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18100111) 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, 1763 + ... + 6269.

Almost surely, 2^18100112 is an apocalyptic number.

It is an amenable number.

18100112 is a deficient number, since it is larger than the sum of its proper divisors (17116384).

18100112 is a wasteful number, since it uses less digits than its factorization.

18100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 18100112 is about 4254.4226400300. The cubic root of 18100112 is about 262.5591074758.

Adding to 18100112 its reverse (21100181), we get a palindrome (39200293).

The spelling of 18100112 in words is "eighteen million, one hundred thousand, one hundred twelve".