129288 has 16 divisors (see below), whose sum is σ = 323280. Its totient is φ = 43088.

The previous prime is 129287. The next prime is 129289. The reversal of 129288 is 882921.

It is an interprime number because it is at equal distance from previous prime (129287) and next prime (129289).

It is not an unprimeable number, because it can be changed into a prime (129281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (20205).

2¹²⁹²⁸⁸ is an apocalyptic number.

It is an amenable number.

129288 is an abundant number, since it is smaller than the sum of its proper divisors (193992).

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

129288 is a wasteful number, since it uses less digits than its factorization.

129288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396 (or 5392 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 129288 is about 359.5664055498. The cubic root of 129288 is about 50.5653175655.

The spelling of 129288 in words is "one hundred twenty-nine thousand, two hundred eighty-eight".