129605674 has 16 divisors (see below), whose sum is σ = 217256256. Its totient is φ = 57474400.

The previous prime is 129605599. The next prime is 129605731. The reversal of 129605674 is 476506921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70942 + ... + 72745.

It is an arithmetic number, because the mean of its divisors is an integer number (13578516).

Almost surely, 2^129605674 is an apocalyptic number.

129605674 is a deficient number, since it is larger than the sum of its proper divisors (87650582).

129605674 is a wasteful number, since it uses less digits than its factorization.

129605674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143741.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 129605674 is about 11384.4487789265. The cubic root of 129605674 is about 506.0669843155.

The spelling of 129605674 in words is "one hundred twenty-nine million, six hundred five thousand, six hundred seventy-four".