129661674 has 8 divisors (see below), whose sum is σ = 259323360. Its totient is φ = 43220556.

The previous prime is 129661663. The next prime is 129661711. The reversal of 129661674 is 476166921.

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

129661674 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10805134 + ... + 10805145.

It is an arithmetic number, because the mean of its divisors is an integer number (32415420).

Almost surely, 2^129661674 is an apocalyptic number.

129661674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129661674 is a wasteful number, since it uses less digits than its factorization.

129661674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610284.

The product of its digits is 108864, while the sum is 42.

The square root of 129661674 is about 11386.9080087616. The cubic root of 129661674 is about 506.1398609356.

The spelling of 129661674 in words is "one hundred twenty-nine million, six hundred sixty-one thousand, six hundred seventy-four".