129297 has 16 divisors (see below), whose sum is σ = 202752. Its totient is φ = 71760.

The previous prime is 129293. The next prime is 129313. The reversal of 129297 is 792921.

It is not a de Polignac number, because 129297 - 2² = 129293 is a prime.

129297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (129293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (12672).

2¹²⁹²⁹⁷ is an apocalyptic number.

It is an amenable number.

129297 is a deficient number, since it is larger than the sum of its proper divisors (73455).

129297 is a wasteful number, since it uses less digits than its factorization.

129297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 2268, while the sum is 30.

The square root of 129297 is about 359.5789204055. The cubic root of 129297 is about 50.5664908564.

The spelling of 129297 in words is "one hundred twenty-nine thousand, two hundred ninety-seven".