129308 has 6 divisors (see below), whose sum is σ = 226296. Its totient is φ = 64652.

The previous prime is 129293. The next prime is 129313. The reversal of 129308 is 803921.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

129308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16160 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (37716).

2¹²⁹³⁰⁸ is an apocalyptic number.

It is an amenable number.

129308 is a deficient number, since it is larger than the sum of its proper divisors (96988).

129308 is a wasteful number, since it uses less digits than its factorization.

129308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32331 (or 32329 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 129308 is about 359.5942157488. The cubic root of 129308 is about 50.5679248046.

The spelling of 129308 in words is "one hundred twenty-nine thousand, three hundred eight".