275771 has 4 divisors (see below), whose sum is σ = 278712. Its totient is φ = 272832.

The previous prime is 275767. The next prime is 275773. The reversal of 275771 is 177572.

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 275771 - 2² = 275767 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275771.

It is not an unprimeable number, because it can be changed into a prime (275773) 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, 1325 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (69678).

2²⁷⁵⁷⁷¹ is an apocalyptic number.

275771 is a deficient number, since it is larger than the sum of its proper divisors (2941).

275771 is an equidigital number, since it uses as much as digits as its factorization.

275771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940.

The product of its digits is 3430, while the sum is 29.

The square root of 275771 is about 525.1390292104. The cubic root of 275771 is about 65.0902887269.

The spelling of 275771 in words is "two hundred seventy-five thousand, seven hundred seventy-one".