565145 has 16 divisors (see below), whose sum is σ = 789888. Its totient is φ = 380160.

The previous prime is 565127. The next prime is 565163. The reversal of 565145 is 541565.

It is an interprime number because it is at equal distance from previous prime (565127) and next prime (565163).

It is not a de Polignac number, because 565145 - 2¹⁴ = 548761 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2225 + ... + 2465.

It is an arithmetic number, because the mean of its divisors is an integer number (49368).

2⁵⁶⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

565145 is a deficient number, since it is larger than the sum of its proper divisors (224743).

565145 is a wasteful number, since it uses less digits than its factorization.

565145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

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

The square root of 565145 is about 751.7612652964. The cubic root of 565145 is about 82.6773655797.

The spelling of 565145 in words is "five hundred sixty-five thousand, one hundred forty-five".