18056313 has 12 divisors (see below), whose sum is σ = 28452528. Its totient is φ = 10943160.

The previous prime is 18056287. The next prime is 18056317. The reversal of 18056313 is 31365081.

It is not a de Polignac number, because 18056313 - 2⁵ = 18056281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18056317) 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 11 ways as a sum of consecutive naturals, for example, 91095 + ... + 91292.

It is an arithmetic number, because the mean of its divisors is an integer number (2371044).

Almost surely, 2^18056313 is an apocalyptic number.

It is an amenable number.

18056313 is a deficient number, since it is larger than the sum of its proper divisors (10396215).

18056313 is a wasteful number, since it uses less digits than its factorization.

18056313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182404 (or 182401 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 18056313 is about 4249.2720553055. The cubic root of 18056313 is about 262.3471545576.

It can be divided in two parts, 1805 and 6313, that added together give a palindrome (8118).

The spelling of 18056313 in words is "eighteen million, fifty-six thousand, three hundred thirteen".