43065 has 32 divisors (see below), whose sum is σ = 86400. Its totient is φ = 20160.

The previous prime is 43063. The next prime is 43067. The reversal of 43065 is 56034.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43063) and next prime (43067).

43065 is an admirable number.

It is not a de Polignac number, because 43065 - 2¹ = 43063 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (43063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1471 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (2700).

2⁴³⁰⁶⁵ is an apocalyptic number.

43065 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43065 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43200).

43065 is a wasteful number, since it uses less digits than its factorization.

43065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 43065 is about 207.5210832663. The cubic root of 43065 is about 35.0516244974.

Adding to 43065 its reverse (56034), we get a palindrome (99099).

The spelling of 43065 in words is "forty-three thousand, sixty-five".