129368 has 16 divisors (see below), whose sum is σ = 246480. Its totient is φ = 63648.

The previous prime is 129361. The next prime is 129379. The reversal of 129368 is 863921.

It is a self number, because there is not a number n which added to its sum of digits gives 129368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129361) 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, 746 + ... + 902.

It is an arithmetic number, because the mean of its divisors is an integer number (15405).

2¹²⁹³⁶⁸ is an apocalyptic number.

It is an amenable number.

129368 is a deficient number, since it is larger than the sum of its proper divisors (117112).

129368 is a wasteful number, since it uses less digits than its factorization.

129368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 262 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 129368 is about 359.6776334442. The cubic root of 129368 is about 50.5757449094.

The spelling of 129368 in words is "one hundred twenty-nine thousand, three hundred sixty-eight".