541565 has 8 divisors (see below), whose sum is σ = 657720. Its totient is φ = 428032.

The previous prime is 541549. The next prime is 541571. The reversal of 541565 is 565145.

541565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 538756 = 53^2 + 734^2 .

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 541565 - 2⁴ = 541549 is a prime.

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, 164 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (82215).

2⁵⁴¹⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

541565 is a deficient number, since it is larger than the sum of its proper divisors (116155).

541565 is a wasteful number, since it uses less digits than its factorization.

541565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

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

The square root of 541565 is about 735.9110000537. The cubic root of 541565 is about 81.5111204668.

The spelling of 541565 in words is "five hundred forty-one thousand, five hundred sixty-five".