129699359 has 8 divisors (see below), whose sum is σ = 135043440. Its totient is φ = 124459200.

The previous prime is 129699343. The next prime is 129699373. The reversal of 129699359 is 953996921.

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 129699359 - 2⁴ = 129699343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129699359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129699329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23429 + ... + 28430.

It is an arithmetic number, because the mean of its divisors is an integer number (16880430).

Almost surely, 2^129699359 is an apocalyptic number.

129699359 is a deficient number, since it is larger than the sum of its proper divisors (5344081).

129699359 is an equidigital number, since it uses as much as digits as its factorization.

129699359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51961.

The product of its digits is 1180980, while the sum is 53.

The square root of 129699359 is about 11388.5626397715. The cubic root of 129699359 is about 506.1888911861.

The spelling of 129699359 in words is "one hundred twenty-nine million, six hundred ninety-nine thousand, three hundred fifty-nine".