129379671 has 12 divisors (see below), whose sum is σ = 188228040. Its totient is φ = 85631760.

The previous prime is 129379637. The next prime is 129379681. The reversal of 129379671 is 176973921.

It is not a de Polignac number, because 129379671 - 2¹⁰ = 129378647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129379681) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 50460 + ... + 52961.

It is an arithmetic number, because the mean of its divisors is an integer number (15685670).

Almost surely, 2^129379671 is an apocalyptic number.

129379671 is a deficient number, since it is larger than the sum of its proper divisors (58848369).

129379671 is a wasteful number, since it uses less digits than its factorization.

129379671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103566 (or 103563 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 129379671 is about 11374.5184953034. The cubic root of 129379671 is about 505.7726576922.

The spelling of 129379671 in words is "one hundred twenty-nine million, three hundred seventy-nine thousand, six hundred seventy-one".