129983 has 8 divisors (see below), whose sum is σ = 153600. Its totient is φ = 107640.

The previous prime is 129971. The next prime is 130003. The reversal of 129983 is 389921.

129983 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129983 - 2⁴ = 129967 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (19200).

2¹²⁹⁹⁸³ is an apocalyptic number.

129983 is a deficient number, since it is larger than the sum of its proper divisors (23617).

129983 is an equidigital number, since it uses as much as digits as its factorization.

129983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 3888, while the sum is 32.

The square root of 129983 is about 360.5315520173. The cubic root of 129983 is about 50.6557619268.

The spelling of 129983 in words is "one hundred twenty-nine thousand, nine hundred eighty-three".