18105132 has 24 divisors (see below), whose sum is σ = 42420672. Its totient is φ = 6010000.

The previous prime is 18105121. The next prime is 18105151. The reversal of 18105132 is 23150181.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18105099 and 18105108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7 + ... + 6017.

It is an arithmetic number, because the mean of its divisors is an integer number (1767528).

Almost surely, 2^18105132 is an apocalyptic number.

18105132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18105132 is an abundant number, since it is smaller than the sum of its proper divisors (24315540).

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

18105132 is a wasteful number, since it uses less digits than its factorization.

18105132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269 (or 6267 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 18105132 is about 4255.0125734244. The cubic root of 18105132 is about 262.5833785021.

Adding to 18105132 its sum of digits (21), we get a triangular number (18105153 = T₆₀₁₇).

The spelling of 18105132 in words is "eighteen million, one hundred five thousand, one hundred thirty-two".