27147 has 4 divisors (see below), whose sum is σ = 36200. Its totient is φ = 18096.

The previous prime is 27143. The next prime is 27179. The reversal of 27147 is 74172.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27147 - 2² = 27143 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522 + ... + 4527.

It is an arithmetic number, because the mean of its divisors is an integer number (9050).

2²⁷¹⁴⁷ is an apocalyptic number.

27147 is a deficient number, since it is larger than the sum of its proper divisors (9053).

27147 is an equidigital number, since it uses as much as digits as its factorization.

27147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052.

The product of its digits is 392, while the sum is 21.

The square root of 27147 is about 164.7634668244. The cubic root of 27147 is about 30.0543459356.

It can be divided in two parts, 27 and 147, that multiplied together give a square (3969 = 63²).

The spelling of 27147 in words is "twenty-seven thousand, one hundred forty-seven", and thus it is an iban number.