129913 has 8 divisors (see below), whose sum is σ = 151232. Its totient is φ = 109296.

The previous prime is 129901. The next prime is 129917. The reversal of 129913 is 319921.

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 129913 - 2⁹ = 129401 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (129917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (18904).

2¹²⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

129913 is a deficient number, since it is larger than the sum of its proper divisors (21319).

129913 is an equidigital number, since it uses as much as digits as its factorization.

129913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its digits is 486, while the sum is 25.

The square root of 129913 is about 360.4344600617. The cubic root of 129913 is about 50.6466670450.

The spelling of 129913 in words is "one hundred twenty-nine thousand, nine hundred thirteen".