545895 has 24 divisors (see below), whose sum is σ = 1082016. Its totient is φ = 249408.

The previous prime is 545893. The next prime is 545899. The reversal of 545895 is 598545.

It is a happy number.

It is not a de Polignac number, because 545895 - 2¹ = 545893 is a prime.

545895 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545895.

It is not an unprimeable number, because it can be changed into a prime (545893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552 + ... + 1181.

It is an arithmetic number, because the mean of its divisors is an integer number (45084).

2⁵⁴⁵⁸⁹⁵ is an apocalyptic number.

545895 is a deficient number, since it is larger than the sum of its proper divisors (536121).

545895 is a wasteful number, since it uses less digits than its factorization.

545895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1748 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 545895 is about 738.8470748403. The cubic root of 545895 is about 81.7277806236.

Subtracting 545895 from its reverse (598545), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 545895 in words is "five hundred forty-five thousand, eight hundred ninety-five".