545805313 has 16 divisors (see below), whose sum is σ = 581253120. Its totient is φ = 511704000.

The previous prime is 545805307. The next prime is 545805347. The reversal of 545805313 is 313508545.

It is a cyclic number.

It is not a de Polignac number, because 545805313 - 2²⁵ = 512250881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545805353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145303 + ... + 149011.

It is an arithmetic number, because the mean of its divisors is an integer number (36328320).

Almost surely, 2^545805313 is an apocalyptic number.

It is an amenable number.

545805313 is a deficient number, since it is larger than the sum of its proper divisors (35447807).

545805313 is a wasteful number, since it uses less digits than its factorization.

545805313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 545805313 is about 23362.4766024495. The cubic root of 545805313 is about 817.2330459740.

The spelling of 545805313 in words is "five hundred forty-five million, eight hundred five thousand, three hundred thirteen".