129096 has 48 divisors (see below), whose sum is σ = 383760. Its totient is φ = 38880.

The previous prime is 129089. The next prime is 129097. The reversal of 129096 is 690921.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (129097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 711 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (7995).

2¹²⁹⁰⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191880).

129096 is an abundant number, since it is smaller than the sum of its proper divisors (254664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129096 is a wasteful number, since it uses less digits than its factorization.

129096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 129096 is about 359.2993181179. The cubic root of 129096 is about 50.5402743780.

The spelling of 129096 in words is "one hundred twenty-nine thousand, ninety-six".