18064523 has 6 divisors (see below), whose sum is σ = 19189956. Its totient is φ = 17001632.

The previous prime is 18064517. The next prime is 18064549. The reversal of 18064523 is 32546081.

It is not a de Polignac number, because 18064523 - 2¹⁴ = 18048139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18064513) 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 5 ways as a sum of consecutive naturals, for example, 30965 + ... + 31542.

It is an arithmetic number, because the mean of its divisors is an integer number (3198326).

Almost surely, 2^18064523 is an apocalyptic number.

18064523 is a deficient number, since it is larger than the sum of its proper divisors (1125433).

18064523 is an equidigital number, since it uses as much as digits as its factorization.

18064523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62541 (or 62524 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 18064523 is about 4250.2379933364. The cubic root of 18064523 is about 262.3869106211.

The spelling of 18064523 in words is "eighteen million, sixty-four thousand, five hundred twenty-three".