129613389 has 8 divisors (see below), whose sum is σ = 182983680. Its totient is φ = 81326016.

The previous prime is 129613369. The next prime is 129613399. The reversal of 129613389 is 983316921.

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

It is not a de Polignac number, because 129613389 - 2⁷ = 129613261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129613389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129613339) 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, 1270669 + ... + 1270770.

It is an arithmetic number, because the mean of its divisors is an integer number (22872960).

Almost surely, 2^129613389 is an apocalyptic number.

It is an amenable number.

129613389 is a deficient number, since it is larger than the sum of its proper divisors (53370291).

129613389 is a wasteful number, since it uses less digits than its factorization.

129613389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541459.

The product of its digits is 69984, while the sum is 42.

The square root of 129613389 is about 11384.7876133022. The cubic root of 129613389 is about 506.0770256179.

The spelling of 129613389 in words is "one hundred twenty-nine million, six hundred thirteen thousand, three hundred eighty-nine".