129066 has 24 divisors (see below), whose sum is σ = 300960. Its totient is φ = 36792.

The previous prime is 129061. The next prime is 129083. The reversal of 129066 is 660921.

It is not an unprimeable number, because it can be changed into a prime (129061) by changing a digit.

129066 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 in 11 ways as a sum of consecutive naturals, for example, 75 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (12540).

2¹²⁹⁰⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150480).

129066 is an abundant number, since it is smaller than the sum of its proper divisors (171894).

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

129066 is a wasteful number, since it uses less digits than its factorization.

129066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 129066 is about 359.2575677700. The cubic root of 129066 is about 50.5363591375.

Adding to 129066 its reverse (660921), we get a palindrome (789987).

The spelling of 129066 in words is "one hundred twenty-nine thousand, sixty-six".