129065 has 8 divisors (see below), whose sum is σ = 157248. Its totient is φ = 101680.

The previous prime is 129061. The next prime is 129083. The reversal of 129065 is 560921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129065 - 2² = 129061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129065.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129061) 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, 260 + ... + 570.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2¹²⁹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

129065 is a deficient number, since it is larger than the sum of its proper divisors (28183).

129065 is an equidigital number, since it uses as much as digits as its factorization.

129065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 129065 is about 359.2561760082. The cubic root of 129065 is about 50.5362286190.

Adding to 129065 its reverse (560921), we get a palindrome (689986).

The spelling of 129065 in words is "one hundred twenty-nine thousand, sixty-five".