545401305 has 24 divisors (see below), whose sum is σ = 960864840. Its totient is φ = 286110720.

The previous prime is 545401273. The next prime is 545401309. The reversal of 545401305 is 503104545.

It can be written as a sum of positive squares in 4 ways, for example, as 10265616 + 535135689 = 3204^2 + 23133^2 .

It is not a de Polignac number, because 545401305 - 2⁵ = 545401273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545401309) 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 23 ways as a sum of consecutive naturals, for example, 96600 + ... + 102089.

It is an arithmetic number, because the mean of its divisors is an integer number (40036035).

Almost surely, 2^545401305 is an apocalyptic number.

It is an amenable number.

545401305 is a deficient number, since it is larger than the sum of its proper divisors (415463535).

545401305 is a wasteful number, since it uses less digits than its factorization.

545401305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198761 (or 198758 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 545401305 is about 23353.8284869954. The cubic root of 545401305 is about 817.0313561173.

The spelling of 545401305 in words is "five hundred forty-five million, four hundred one thousand, three hundred five".