27144143 has 4 divisors (see below), whose sum is σ = 29232168. Its totient is φ = 25056120.

The previous prime is 27144133. The next prime is 27144157. The reversal of 27144143 is 34144172.

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

It is a cyclic number.

It is not a de Polignac number, because 27144143 - 2¹⁰ = 27143119 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 (27144113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043993 + ... + 1044018.

It is an arithmetic number, because the mean of its divisors is an integer number (7308042).

Almost surely, 2^27144143 is an apocalyptic number.

27144143 is a deficient number, since it is larger than the sum of its proper divisors (2088025).

27144143 is a wasteful number, since it uses less digits than its factorization.

27144143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088024.

The product of its digits is 2688, while the sum is 26.

The square root of 27144143 is about 5210.0041266778. The cubic root of 27144143 is about 300.5329157385.

The spelling of 27144143 in words is "twenty-seven million, one hundred forty-four thousand, one hundred forty-three".