18068547 has 16 divisors (see below), whose sum is σ = 28730880. Its totient is φ = 9875712.

The previous prime is 18068527. The next prime is 18068549. The reversal of 18068547 is 74586081.

It is not a de Polignac number, because 18068547 - 2⁶ = 18068483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18068549) 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 15 ways as a sum of consecutive naturals, for example, 18222 + ... + 19187.

It is an arithmetic number, because the mean of its divisors is an integer number (1795680).

Almost surely, 2^18068547 is an apocalyptic number.

18068547 is a deficient number, since it is larger than the sum of its proper divisors (10662333).

18068547 is a wasteful number, since it uses less digits than its factorization.

18068547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37442.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 18068547 is about 4250.7113522327. The cubic root of 18068547 is about 262.4063920200.

The spelling of 18068547 in words is "eighteen million, sixty-eight thousand, five hundred forty-seven".