18134327 has 4 divisors (see below), whose sum is σ = 18922800. Its totient is φ = 17345856.

The previous prime is 18134317. The next prime is 18134351. The reversal of 18134327 is 72343181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72343181 = 31 ⋅2333651.

It is a cyclic number.

It is not a de Polignac number, because 18134327 - 2⁸ = 18134071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18134327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134317) 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, 394202 + ... + 394247.

It is an arithmetic number, because the mean of its divisors is an integer number (4730700).

Almost surely, 2^18134327 is an apocalyptic number.

18134327 is a deficient number, since it is larger than the sum of its proper divisors (788473).

18134327 is an equidigital number, since it uses as much as digits as its factorization.

18134327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788472.

The product of its digits is 4032, while the sum is 29.

The square root of 18134327 is about 4258.4418511939. The cubic root of 18134327 is about 262.7244435662.

The spelling of 18134327 in words is "eighteen million, one hundred thirty-four thousand, three hundred twenty-seven".