545273545 has 8 divisors (see below), whose sum is σ = 655978824. Its totient is φ = 435118464.

The previous prime is 545273543. The next prime is 545273549. The reversal of 545273545 is 545372545.

It can be written as a sum of positive squares in 4 ways, for example, as 269846329 + 275427216 = 16427^2 + 16596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545273545 - 2¹ = 545273543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545273498 and 545273507.

It is not an unprimeable number, because it can be changed into a prime (545273543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135364 + ... + 139333.

It is an arithmetic number, because the mean of its divisors is an integer number (81997353).

Almost surely, 2^545273545 is an apocalyptic number.

It is an amenable number.

545273545 is a deficient number, since it is larger than the sum of its proper divisors (110705279).

545273545 is a wasteful number, since it uses less digits than its factorization.

545273545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275099.

The product of its digits is 420000, while the sum is 40.

The square root of 545273545 is about 23351.0930151032. The cubic root of 545273545 is about 816.9675547312.

The spelling of 545273545 in words is "five hundred forty-five million, two hundred seventy-three thousand, five hundred forty-five".