275279 has 4 divisors (see below), whose sum is σ = 281184. Its totient is φ = 269376.

The previous prime is 275269. The next prime is 275299. The reversal of 275279 is 972572.

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 275279 - 2⁴ = 275263 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275269) 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, 2882 + ... + 2975.

It is an arithmetic number, because the mean of its divisors is an integer number (70296).

2²⁷⁵²⁷⁹ is an apocalyptic number.

275279 is a deficient number, since it is larger than the sum of its proper divisors (5905).

275279 is an equidigital number, since it uses as much as digits as its factorization.

275279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904.

The product of its digits is 8820, while the sum is 32.

The square root of 275279 is about 524.6703727103. The cubic root of 275279 is about 65.0515567285.

The spelling of 275279 in words is "two hundred seventy-five thousand, two hundred seventy-nine".