545165 has 8 divisors (see below), whose sum is σ = 660960. Its totient is φ = 431632.

The previous prime is 545161. The next prime is 545189. The reversal of 545165 is 561545.

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 545165 - 2² = 545161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 1044.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2⁵⁴⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

545165 is a deficient number, since it is larger than the sum of its proper divisors (115795).

545165 is a wasteful number, since it uses less digits than its factorization.

545165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131.

The product of its digits is 3000, while the sum is 26.

The square root of 545165 is about 738.3528966558. The cubic root of 545165 is about 81.6913341191.

The spelling of 545165 in words is "five hundred forty-five thousand, one hundred sixty-five".