545403645 has 32 divisors (see below), whose sum is σ = 1020643200. Its totient is φ = 275571072.

The previous prime is 545403641. The next prime is 545403671. The reversal of 545403645 is 546304545.

545403645 is a `hidden beast` number, since 5 + 4 + 5 + 4 + 0 + 3 + 645 = 666.

It is not a de Polignac number, because 545403645 - 2² = 545403641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545403641) 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 31 ways as a sum of consecutive naturals, for example, 103752 + ... + 108881.

It is an arithmetic number, because the mean of its divisors is an integer number (31895100).

Almost surely, 2^545403645 is an apocalyptic number.

It is an amenable number.

545403645 is a deficient number, since it is larger than the sum of its proper divisors (475239555).

545403645 is a wasteful number, since it uses less digits than its factorization.

545403645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212666 (or 212660 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 545403645 is about 23353.8785857938. The cubic root of 545403645 is about 817.0325245845.

It can be divided in two parts, 54540 and 3645, that added together give a palindrome (58185).

The spelling of 545403645 in words is "five hundred forty-five million, four hundred three thousand, six hundred forty-five".