545065023 has 4 divisors (see below), whose sum is σ = 726753368. Its totient is φ = 363376680.

The previous prime is 545065021. The next prime is 545065043. The reversal of 545065023 is 320560545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 545065023 - 2¹ = 545065021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545065021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90844168 + ... + 90844173.

It is an arithmetic number, because the mean of its divisors is an integer number (181688342).

Almost surely, 2^545065023 is an apocalyptic number.

545065023 is a deficient number, since it is larger than the sum of its proper divisors (181688345).

545065023 is a wasteful number, since it uses less digits than its factorization.

545065023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181688344.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 545065023 is about 23346.6276579724. The cubic root of 545065023 is about 816.8634006295.

The spelling of 545065023 in words is "five hundred forty-five million, sixty-five thousand, twenty-three".