129445674 has 16 divisors (see below), whose sum is σ = 259036320. Its totient is φ = 43124400.

The previous prime is 129445669. The next prime is 129445691. The reversal of 129445674 is 476544921.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8124 + ... + 18024.

It is an arithmetic number, because the mean of its divisors is an integer number (16189770).

Almost surely, 2^129445674 is an apocalyptic number.

129445674 is an abundant number, since it is smaller than the sum of its proper divisors (129590646).

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

129445674 is a wasteful number, since it uses less digits than its factorization.

129445674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12085.

The product of its digits is 241920, while the sum is 42.

The square root of 129445674 is about 11377.4194789504. The cubic root of 129445674 is about 505.8586496603.

The spelling of 129445674 in words is "one hundred twenty-nine million, four hundred forty-five thousand, six hundred seventy-four".