18068573 has 4 divisors (see below), whose sum is σ = 18374880. Its totient is φ = 17762268.

The previous prime is 18068549. The next prime is 18068579. The reversal of 18068573 is 37586081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37586081 = 13 ⋅2891237.

It is a cyclic number.

It is not a de Polignac number, because 18068573 - 2²⁴ = 1291357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153065 + ... + 153182.

It is an arithmetic number, because the mean of its divisors is an integer number (4593720).

Almost surely, 2^18068573 is an apocalyptic number.

It is an amenable number.

18068573 is a deficient number, since it is larger than the sum of its proper divisors (306307).

18068573 is an equidigital number, since it uses as much as digits as its factorization.

18068573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306306.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 18068573 is about 4250.7144105432. The cubic root of 18068573 is about 262.4065178845.

The spelling of 18068573 in words is "eighteen million, sixty-eight thousand, five hundred seventy-three".