271705 has 12 divisors (see below), whose sum is σ = 379620. Its totient is φ = 186144.

The previous prime is 271703. The next prime is 271723. The reversal of 271705 is 507172.

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 233289 = 196^2 + 483^2 .

It is not a de Polignac number, because 271705 - 2¹ = 271703 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310 + ... + 799.

It is an arithmetic number, because the mean of its divisors is an integer number (31635).

2²⁷¹⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

271705 is a deficient number, since it is larger than the sum of its proper divisors (107915).

271705 is a wasteful number, since it uses less digits than its factorization.

271705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 271705 is about 521.2532973517. The cubic root of 271705 is about 64.7688038886.

Adding to 271705 its reverse (507172), we get a palindrome (778877).

The spelling of 271705 in words is "two hundred seventy-one thousand, seven hundred five".