129616115 has 8 divisors (see below), whose sum is σ = 160556928. Its totient is φ = 100347840.

The previous prime is 129616093. The next prime is 129616139. The reversal of 129616115 is 511616921.

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

It is not a de Polignac number, because 129616115 - 2²⁴ = 112838899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 417962 + ... + 418271.

It is an arithmetic number, because the mean of its divisors is an integer number (20069616).

Almost surely, 2^129616115 is an apocalyptic number.

129616115 is a deficient number, since it is larger than the sum of its proper divisors (30940813).

129616115 is an equidigital number, since it uses as much as digits as its factorization.

129616115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836269.

The product of its digits is 3240, while the sum is 32.

The square root of 129616115 is about 11384.9073338346. The cubic root of 129616115 is about 506.0805734929.

The spelling of 129616115 in words is "one hundred twenty-nine million, six hundred sixteen thousand, one hundred fifteen".