129807 has 6 divisors (see below), whose sum is σ = 187512. Its totient is φ = 86532.

The previous prime is 129803. The next prime is 129841. The reversal of 129807 is 708921.

It is not a de Polignac number, because 129807 - 2² = 129803 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 129807.

It is not an unprimeable number, because it can be changed into a prime (129803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7203 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (31252).

2¹²⁹⁸⁰⁷ is an apocalyptic number.

129807 is a deficient number, since it is larger than the sum of its proper divisors (57705).

129807 is a wasteful number, since it uses less digits than its factorization.

129807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429 (or 14426 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 129807 is about 360.2873852912. The cubic root of 129807 is about 50.6328885741.

The spelling of 129807 in words is "one hundred twenty-nine thousand, eight hundred seven".