18054307 has 6 divisors (see below), whose sum is σ = 18656484. Its totient is φ = 17470980.

The previous prime is 18054301. The next prime is 18054317. The reversal of 18054307 is 70345081.

It is a de Polignac number, because none of the positive numbers 2^k-18054307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18054301) 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 5 ways as a sum of consecutive naturals, for example, 8433 + ... + 10354.

It is an arithmetic number, because the mean of its divisors is an integer number (3109414).

Almost surely, 2^18054307 is an apocalyptic number.

18054307 is a deficient number, since it is larger than the sum of its proper divisors (602177).

18054307 is an equidigital number, since it uses as much as digits as its factorization.

18054307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18849 (or 18818 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18054307 is about 4249.0360083200. The cubic root of 18054307 is about 262.3374388812.

Adding to 18054307 its reverse (70345081), we get a palindrome (88399388).

The spelling of 18054307 in words is "eighteen million, fifty-four thousand, three hundred seven".