273243 has 4 divisors (see below), whose sum is σ = 364328. Its totient is φ = 182160.

The previous prime is 273233. The next prime is 273253. The reversal of 273243 is 342372.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (273233) and next prime (273253).

It is a de Polignac number, because none of the positive numbers 2^k-273243 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 7² + 2¹³ + 3⁴ + 4⁹ + 3⁶ .

It is a D-number.

It is a Duffinian number.

273243 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 273243.

It is not an unprimeable number, because it can be changed into a prime (273233) 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, 45538 + ... + 45543.

It is an arithmetic number, because the mean of its divisors is an integer number (91082).

2²⁷³²⁴³ is an apocalyptic number.

273243 is a deficient number, since it is larger than the sum of its proper divisors (91085).

273243 is an equidigital number, since it uses as much as digits as its factorization.

273243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91084.

The product of its digits is 1008, while the sum is 21.

The square root of 273243 is about 522.7265059283. The cubic root of 273243 is about 64.8907830593.

It can be divided in two parts, 2732 and 43, that added together give a triangular number (2775 = T₇₄).

The spelling of 273243 in words is "two hundred seventy-three thousand, two hundred forty-three", and thus it is an iban number.