273005 has 4 divisors (see below), whose sum is σ = 327612. Its totient is φ = 218400.

The previous prime is 273001. The next prime is 273029. The reversal of 273005 is 500372.

273005 is nontrivially palindromic in base 15.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44521 + 228484 = 211^2 + 478^2 .

It is not a de Polignac number, because 273005 - 2² = 273001 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 (273001) 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, 27296 + ... + 27305.

It is an arithmetic number, because the mean of its divisors is an integer number (81903).

2²⁷³⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

273005 is a deficient number, since it is larger than the sum of its proper divisors (54607).

273005 is an equidigital number, since it uses as much as digits as its factorization.

273005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54606.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 273005 is about 522.4988038264. The cubic root of 273005 is about 64.8719372059.

Adding to 273005 its reverse (500372), we get a palindrome (773377).

The spelling of 273005 in words is "two hundred seventy-three thousand, five".