129253472174 has 32 divisors (see below), whose sum is σ = 209840422176. Its totient is φ = 59482874880.

The previous prime is 129253472113. The next prime is 129253472189. The reversal of 129253472174 is 471274352921.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436394 + ... + 670034.

It is an arithmetic number, because the mean of its divisors is an integer number (6557513193).

Almost surely, 2^129253472174 is an apocalyptic number.

129253472174 is a deficient number, since it is larger than the sum of its proper divisors (80586950002).

129253472174 is a wasteful number, since it uses less digits than its factorization.

129253472174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234020.

The product of its digits is 846720, while the sum is 47.

The spelling of 129253472174 in words is "one hundred twenty-nine billion, two hundred fifty-three million, four hundred seventy-two thousand, one hundred seventy-four".