129180041 has 8 divisors (see below), whose sum is σ = 133551264. Its totient is φ = 124871040.

The previous prime is 129180013. The next prime is 129180049. The reversal of 129180041 is 140081921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129180041 - 2⁶ = 129179977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129180049) 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 7 ways as a sum of consecutive naturals, for example, 11315 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (16693908).

Almost surely, 2^129180041 is an apocalyptic number.

It is an amenable number.

129180041 is a deficient number, since it is larger than the sum of its proper divisors (4371223).

129180041 is an equidigital number, since it uses as much as digits as its factorization.

129180041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31111.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 129180041 is about 11365.7397911443. The cubic root of 129180041 is about 505.5123917385.

The spelling of 129180041 in words is "one hundred twenty-nine million, one hundred eighty thousand, forty-one".