18068313 has 4 divisors (see below), whose sum is σ = 24091088. Its totient is φ = 12045540.

The previous prime is 18068279. The next prime is 18068333. The reversal of 18068313 is 31386081.

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.

It is not a de Polignac number, because 18068313 - 2¹⁰ = 18067289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18068333) 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, 3011383 + ... + 3011388.

It is an arithmetic number, because the mean of its divisors is an integer number (6022772).

Almost surely, 2^18068313 is an apocalyptic number.

It is an amenable number.

18068313 is a deficient number, since it is larger than the sum of its proper divisors (6022775).

18068313 is an equidigital number, since it uses as much as digits as its factorization.

18068313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022774.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 18068313 is about 4250.6838273388. The cubic root of 18068313 is about 262.4052592346.

It can be divided in two parts, 18068 and 313, that added together give a palindrome (18381).

The spelling of 18068313 in words is "eighteen million, sixty-eight thousand, three hundred thirteen".