129041064 has 24 divisors (see below), whose sum is σ = 349486410. Its totient is φ = 43013664.

The previous prime is 129041041. The next prime is 129041093. The reversal of 129041064 is 460140921.

It can be written as a sum of positive squares in only one way, i.e., 117548964 + 11492100 = 10842^2 + 3390^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896047 + ... + 896190.

Almost surely, 2^129041064 is an apocalyptic number.

It is an amenable number.

129041064 is an abundant number, since it is smaller than the sum of its proper divisors (220445346).

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

129041064 is a wasteful number, since it uses less digits than its factorization.

129041064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792249 (or 1792242 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 129041064 is about 11359.6242895617. The cubic root of 129041064 is about 505.3310432773.

Adding to 129041064 its reverse (460140921), we get a palindrome (589181985).

The spelling of 129041064 in words is "one hundred twenty-nine million, forty-one thousand, sixty-four".