273245285 has 4 divisors (see below), whose sum is σ = 327894348. Its totient is φ = 218596224.

The previous prime is 273245249. The next prime is 273245293. The reversal of 273245285 is 582542372.

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 66863329 + 206381956 = 8177^2 + 14366^2 .

It is a cyclic number.

It is not a de Polignac number, because 273245285 - 2¹⁸ = 272983141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27324524 + ... + 27324533.

It is an arithmetic number, because the mean of its divisors is an integer number (81973587).

Almost surely, 2^273245285 is an apocalyptic number.

It is an amenable number.

273245285 is a deficient number, since it is larger than the sum of its proper divisors (54649063).

273245285 is an equidigital number, since it uses as much as digits as its factorization.

273245285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54649062.

The product of its digits is 134400, while the sum is 38.

The square root of 273245285 is about 16530.1326370964. The cubic root of 273245285 is about 648.9096394227.

The spelling of 273245285 in words is "two hundred seventy-three million, two hundred forty-five thousand, two hundred eighty-five".