129671270 has 8 divisors (see below), whose sum is σ = 233408304. Its totient is φ = 51868504.

The previous prime is 129671239. The next prime is 129671279. The reversal of 129671270 is 72176921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 129671270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129671279) 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, 6483554 + ... + 6483573.

It is an arithmetic number, because the mean of its divisors is an integer number (29176038).

Almost surely, 2^129671270 is an apocalyptic number.

129671270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129671270 is a deficient number, since it is larger than the sum of its proper divisors (103737034).

129671270 is a wasteful number, since it uses less digits than its factorization.

129671270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12967134.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 129671270 is about 11387.3293620585. The cubic root of 129671270 is about 506.1523467590.

The spelling of 129671270 in words is "one hundred twenty-nine million, six hundred seventy-one thousand, two hundred seventy".