129671038 has 8 divisors (see below), whose sum is σ = 222293232. Its totient is φ = 55573296.

The previous prime is 129671027. The next prime is 129671039. The reversal of 129671038 is 830176921.

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

It is a junction number, because it is equal to n+sod(n) for n = 129670988 and 129671006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129671039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4631095 + ... + 4631122.

It is an arithmetic number, because the mean of its divisors is an integer number (27786654).

Almost surely, 2^129671038 is an apocalyptic number.

129671038 is a deficient number, since it is larger than the sum of its proper divisors (92622194).

129671038 is an equidigital number, since it uses as much as digits as its factorization.

129671038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9262226.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 129671038 is about 11387.3191752932. The cubic root of 129671038 is about 506.1520448998.

The spelling of 129671038 in words is "one hundred twenty-nine million, six hundred seventy-one thousand, thirty-eight".