129383 has 4 divisors (see below), whose sum is σ = 130680. Its totient is φ = 128088.

The previous prime is 129379. The next prime is 129401. The reversal of 129383 is 383921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383921 = 127 ⋅3023.

It is a cyclic number.

It is not a de Polignac number, because 129383 - 2² = 129379 is a prime.

It is a Duffinian number.

Its product of digits (1296) is a multiple of the sum of its prime divisors (1296).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129313) 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, 485 + ... + 702.

It is an arithmetic number, because the mean of its divisors is an integer number (32670).

2¹²⁹³⁸³ is an apocalyptic number.

129383 is a deficient number, since it is larger than the sum of its proper divisors (1297).

129383 is a wasteful number, since it uses less digits than its factorization.

129383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 1296, while the sum is 26.

The square root of 129383 is about 359.6984848453. The cubic root of 129383 is about 50.5776995578.

It can be divided in two parts, 129 and 383, that added together give a 9-th power (512 = 2⁹).

The spelling of 129383 in words is "one hundred twenty-nine thousand, three hundred eighty-three".