129469906 has 8 divisors (see below), whose sum is σ = 194487984. Its totient is φ = 64640580.

The previous prime is 129469897. The next prime is 129469931. The reversal of 129469906 is 609964921.

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

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 3 ways as a sum of consecutive naturals, for example, 45460 + ... + 48223.

It is an arithmetic number, because the mean of its divisors is an integer number (24310998).

Almost surely, 2^129469906 is an apocalyptic number.

129469906 is a deficient number, since it is larger than the sum of its proper divisors (65018078).

129469906 is an equidigital number, since it uses as much as digits as its factorization.

129469906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94376.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 129469906 is about 11378.4843454653. The cubic root of 129469906 is about 505.8902129708.

The spelling of 129469906 in words is "one hundred twenty-nine million, four hundred sixty-nine thousand, nine hundred six".