18058003 has 4 divisors (see below), whose sum is σ = 18200320. Its totient is φ = 17915688.

The previous prime is 18057997. The next prime is 18058021. The reversal of 18058003 is 30085081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18058003 - 2⁹ = 18057491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18058603) 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 3 ways as a sum of consecutive naturals, for example, 70968 + ... + 71221.

It is an arithmetic number, because the mean of its divisors is an integer number (4550080).

Almost surely, 2^18058003 is an apocalyptic number.

18058003 is a deficient number, since it is larger than the sum of its proper divisors (142317).

18058003 is a wasteful number, since it uses less digits than its factorization.

18058003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142316.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18058003 is about 4249.4709082426. The cubic root of 18058003 is about 262.3553391901.

The spelling of 18058003 in words is "eighteen million, fifty-eight thousand, three".