129108974 has 16 divisors (see below), whose sum is σ = 196376400. Its totient is φ = 63656064.

The previous prime is 129108961. The next prime is 129108979. The reversal of 129108974 is 479801921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129108979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48182 + ... + 50790.

It is an arithmetic number, because the mean of its divisors is an integer number (12273525).

Almost surely, 2^129108974 is an apocalyptic number.

129108974 is a deficient number, since it is larger than the sum of its proper divisors (67267426).

129108974 is a wasteful number, since it uses less digits than its factorization.

129108974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 129108974 is about 11362.6129917374. The cubic root of 129108974 is about 505.4196740121.

The spelling of 129108974 in words is "one hundred twenty-nine million, one hundred eight thousand, nine hundred seventy-four".