273245473 has 4 divisors (see below), whose sum is σ = 273807040. Its totient is φ = 272683908.

The previous prime is 273245459. The next prime is 273245477. The reversal of 273245473 is 374542372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 273245473 - 2¹³ = 273237281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273245477) 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, 280053 + ... + 281026.

It is an arithmetic number, because the mean of its divisors is an integer number (68451760).

Almost surely, 2^273245473 is an apocalyptic number.

It is an amenable number.

273245473 is a deficient number, since it is larger than the sum of its proper divisors (561567).

273245473 is an equidigital number, since it uses as much as digits as its factorization.

273245473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561566.

The product of its digits is 141120, while the sum is 37.

The square root of 273245473 is about 16530.1383236802. The cubic root of 273245473 is about 648.9097882450.

It can be divided in two parts, 2732 and 45473, that added together give a triangular number (48205 = T₃₁₀).

The spelling of 273245473 in words is "two hundred seventy-three million, two hundred forty-five thousand, four hundred seventy-three".