129001064 has 16 divisors (see below), whose sum is σ = 244097700. Its totient is φ = 63908352.

The previous prime is 129001057. The next prime is 129001069. The reversal of 129001064 is 460100921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119028100 + 9972964 = 10910^2 + 3158^2 .

It is not an unprimeable number, because it can be changed into a prime (129001069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 73097 + ... + 74840.

Almost surely, 2^129001064 is an apocalyptic number.

It is an amenable number.

129001064 is a deficient number, since it is larger than the sum of its proper divisors (115096636).

129001064 is a wasteful number, since it uses less digits than its factorization.

129001064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148052 (or 148048 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 129001064 is about 11357.8635314922. The cubic root of 129001064 is about 505.2788239036.

Adding to 129001064 its reverse (460100921), we get a palindrome (589101985).

The spelling of 129001064 in words is "one hundred twenty-nine million, one thousand, sixty-four".