545673915 has 60 divisors (see below), whose sum is σ = 995537664. Its totient is φ = 285931296.

The previous prime is 545673907. The next prime is 545673917. The reversal of 545673915 is 519376545.

545673915 is a `hidden beast` number, since 54 + 567 + 39 + 1 + 5 = 666.

It is not a de Polignac number, because 545673915 - 2³ = 545673907 is a prime.

It is a super-3 number, since 3×545673915³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (567000) is a multiple of the sum of its prime factors (350).

It is not an unprimeable number, because it can be changed into a prime (545673917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4296582 + ... + 4296708.

Almost surely, 2^545673915 is an apocalyptic number.

545673915 is a deficient number, since it is larger than the sum of its proper divisors (449863749).

545673915 is a wasteful number, since it uses less digits than its factorization.

545673915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 238 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 545673915 is about 23359.6642741286. The cubic root of 545673915 is about 817.1674600691.

The spelling of 545673915 in words is "five hundred forty-five million, six hundred seventy-three thousand, nine hundred fifteen".