545870905 has 8 divisors (see below), whose sum is σ = 656934912. Its totient is φ = 435436848.

The previous prime is 545870873. The next prime is 545870929. The reversal of 545870905 is 509078545.

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 545870905 - 2⁵ = 545870873 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 155577 + ... + 159046.

It is an arithmetic number, because the mean of its divisors is an integer number (82116864).

Almost surely, 2^545870905 is an apocalyptic number.

It is an amenable number.

545870905 is a deficient number, since it is larger than the sum of its proper divisors (111064007).

545870905 is a wasteful number, since it uses less digits than its factorization.

545870905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314975.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 545870905 is about 23363.8803498049. The cubic root of 545870905 is about 817.2657815799.

The spelling of 545870905 in words is "five hundred forty-five million, eight hundred seventy thousand, nine hundred five".