18105773 has 16 divisors (see below), whose sum is σ = 21696000. Its totient is φ = 14781312.

The previous prime is 18105757. The next prime is 18105779. The reversal of 18105773 is 37750181.

It is not a de Polignac number, because 18105773 - 2⁴ = 18105757 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18105779) 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 15 ways as a sum of consecutive naturals, for example, 15473 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (1356000).

Almost surely, 2^18105773 is an apocalyptic number.

It is an amenable number.

18105773 is a deficient number, since it is larger than the sum of its proper divisors (3590227).

18105773 is a wasteful number, since it uses less digits than its factorization.

18105773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 18105773 is about 4255.0878956844. The cubic root of 18105773 is about 262.5864773281.

The spelling of 18105773 in words is "eighteen million, one hundred five thousand, seven hundred seventy-three".