545436273 has 4 divisors (see below), whose sum is σ = 727248368. Its totient is φ = 363624180.

The previous prime is 545436193. The next prime is 545436293. The reversal of 545436273 is 372634545.

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 de Polignac number, because none of the positive numbers 2^k-545436273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545436293) by changing a digit.

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, 90906043 + ... + 90906048.

It is an arithmetic number, because the mean of its divisors is an integer number (181812092).

Almost surely, 2^545436273 is an apocalyptic number.

It is an amenable number.

545436273 is a deficient number, since it is larger than the sum of its proper divisors (181812095).

545436273 is a wasteful number, since it uses less digits than its factorization.

545436273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181812094.

The product of its digits is 302400, while the sum is 39.

The square root of 545436273 is about 23354.5771316888. The cubic root of 545436273 is about 817.0488168639.

The spelling of 545436273 in words is "five hundred forty-five million, four hundred thirty-six thousand, two hundred seventy-three".