18005073 has 8 divisors (see below), whose sum is σ = 24141600. Its totient is φ = 11935968.

The previous prime is 18005047. The next prime is 18005101. The reversal of 18005073 is 37050081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18005073 - 2⁵ = 18005041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18005473) 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 7 ways as a sum of consecutive naturals, for example, 16228 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (3017700).

Almost surely, 2^18005073 is an apocalyptic number.

It is an amenable number.

18005073 is a deficient number, since it is larger than the sum of its proper divisors (6136527).

18005073 is a wasteful number, since it uses less digits than its factorization.

18005073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33711.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 18005073 is about 4243.2385037846. The cubic root of 18005073 is about 262.0987575177.

The spelling of 18005073 in words is "eighteen million, five thousand, seventy-three".