129180004 has 12 divisors (see below), whose sum is σ = 227329200. Its totient is φ = 64228808.

The previous prime is 129180001. The next prime is 129180013. The reversal of 129180004 is 400081921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (129180001) 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, 89494 + ... + 90925.

It is an arithmetic number, because the mean of its divisors is an integer number (18944100).

Almost surely, 2^129180004 is an apocalyptic number.

It is an amenable number.

129180004 is a deficient number, since it is larger than the sum of its proper divisors (98149196).

129180004 is a wasteful number, since it uses less digits than its factorization.

129180004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180602 (or 180600 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 129180004 is about 11365.7381634454. The cubic root of 129180004 is about 505.5123434752.

The spelling of 129180004 in words is "one hundred twenty-nine million, one hundred eighty thousand, four".