129983323 has 4 divisors (see below), whose sum is σ = 130176000. Its totient is φ = 129790648.

The previous prime is 129983317. The next prime is 129983333. The reversal of 129983323 is 323389921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129983323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129983303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95323 + ... + 96676.

It is an arithmetic number, because the mean of its divisors is an integer number (32544000).

Almost surely, 2^129983323 is an apocalyptic number.

129983323 is a deficient number, since it is larger than the sum of its proper divisors (192677).

129983323 is an equidigital number, since it uses as much as digits as its factorization.

129983323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192676.

The product of its digits is 69984, while the sum is 40.

The square root of 129983323 is about 11401.0228927057. The cubic root of 129983323 is about 506.5580388563.

The spelling of 129983323 in words is "one hundred twenty-nine million, nine hundred eighty-three thousand, three hundred twenty-three".