129308914 has 8 divisors (see below), whose sum is σ = 221672448. Its totient is φ = 55418100.

The previous prime is 129308897. The next prime is 129308929. The reversal of 129308914 is 419803921.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4618162 + ... + 4618189.

It is an arithmetic number, because the mean of its divisors is an integer number (27709056).

Almost surely, 2^129308914 is an apocalyptic number.

129308914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129308914 is a deficient number, since it is larger than the sum of its proper divisors (92363534).

129308914 is an equidigital number, since it uses as much as digits as its factorization.

129308914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9236360.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 129308914 is about 11371.4077404691. The cubic root of 129308914 is about 505.6804394904.

The spelling of 129308914 in words is "one hundred twenty-nine million, three hundred eight thousand, nine hundred fourteen".