545765 has 8 divisors (see below), whose sum is σ = 714528. Its totient is φ = 396880.

The previous prime is 545759. The next prime is 545773. The reversal of 545765 is 567545.

It is a happy number.

545765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545765 - 2⁴ = 545749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (89316).

2⁵⁴⁵⁷⁶⁵ is an apocalyptic number.

545765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545765 is a deficient number, since it is larger than the sum of its proper divisors (168763).

545765 is a wasteful number, since it uses less digits than its factorization.

545765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9939.

The product of its digits is 21000, while the sum is 32.

The square root of 545765 is about 738.7590946987. The cubic root of 545765 is about 81.7212925291.

The spelling of 545765 in words is "five hundred forty-five thousand, seven hundred sixty-five".