27085143 has 4 divisors (see below), whose sum is σ = 36113528. Its totient is φ = 18056760.

The previous prime is 27085139. The next prime is 27085181. The reversal of 27085143 is 34158072.

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

It is not a de Polignac number, because 27085143 - 2² = 27085139 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 27085143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514188 + ... + 4514193.

It is an arithmetic number, because the mean of its divisors is an integer number (9028382).

Almost surely, 2^27085143 is an apocalyptic number.

27085143 is a deficient number, since it is larger than the sum of its proper divisors (9028385).

27085143 is an equidigital number, since it uses as much as digits as its factorization.

27085143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028384.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 27085143 is about 5204.3388629104. The cubic root of 27085143 is about 300.3150135502.

The spelling of 27085143 in words is "twenty-seven million, eighty-five thousand, one hundred forty-three".