18134671 has 4 divisors (see below), whose sum is σ = 18226000. Its totient is φ = 18043344.

The previous prime is 18134663. The next prime is 18134693. The reversal of 18134671 is 17643181.

18134671 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17643181 = 1901 ⋅9281.

It is a cyclic number.

It is not a de Polignac number, because 18134671 - 2³ = 18134663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134071) 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, 45366 + ... + 45763.

It is an arithmetic number, because the mean of its divisors is an integer number (4556500).

Almost surely, 2^18134671 is an apocalyptic number.

18134671 is a deficient number, since it is larger than the sum of its proper divisors (91329).

18134671 is an equidigital number, since it uses as much as digits as its factorization.

18134671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91328.

The product of its digits is 4032, while the sum is 31.

The square root of 18134671 is about 4258.4822413625. The cubic root of 18134671 is about 262.7261048104.

It can be divided in two parts, 18 and 134671, that added together give a square (134689 = 367²).

The spelling of 18134671 in words is "eighteen million, one hundred thirty-four thousand, six hundred seventy-one".