80129 has 4 divisors (see below), whose sum is σ = 91584. Its totient is φ = 68676.

The previous prime is 80111. The next prime is 80141. The reversal of 80129 is 92108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80129 - 2⁸ = 79873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80129.

It is not an unprimeable number, because it can be changed into a prime (80149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5717 + ... + 5730.

It is an arithmetic number, because the mean of its divisors is an integer number (22896).

2⁸⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

80129 is a deficient number, since it is larger than the sum of its proper divisors (11455).

80129 is a wasteful number, since it uses less digits than its factorization.

80129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11454.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 80129 is about 283.0706625562. The cubic root of 80129 is about 43.1118415361. Note that the first 3 decimals are identical.

The spelling of 80129 in words is "eighty thousand, one hundred twenty-nine".