129714171 has 4 divisors (see below), whose sum is σ = 172952232. Its totient is φ = 86476112.

The previous prime is 129714157. The next prime is 129714209. The reversal of 129714171 is 171417921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171417921 = 3 ⋅57139307.

It is a cyclic number.

It is not a de Polignac number, because 129714171 - 2⁵ = 129714139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129710171) 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, 21619026 + ... + 21619031.

It is an arithmetic number, because the mean of its divisors is an integer number (43238058).

Almost surely, 2^129714171 is an apocalyptic number.

129714171 is a deficient number, since it is larger than the sum of its proper divisors (43238061).

129714171 is an equidigital number, since it uses as much as digits as its factorization.

129714171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43238060.

The product of its digits is 3528, while the sum is 33.

The square root of 129714171 is about 11389.2129227616. The cubic root of 129714171 is about 506.2081598099.

The spelling of 129714171 in words is "one hundred twenty-nine million, seven hundred fourteen thousand, one hundred seventy-one".