129041041 has 2 divisors, whose sum is σ = 129041042. Its totient is φ = 129041040.

The previous prime is 129041023. The next prime is 129041093. The reversal of 129041041 is 140140921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94478400 + 34562641 = 9720^2 + 5879^2 .

It is a cyclic number.

It is not a de Polignac number, because 129041041 - 2¹⁵ = 129008273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129041641) by changing a digit.

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 as a sum of consecutive naturals, namely, 64520520 + 64520521.

It is an arithmetic number, because the mean of its divisors is an integer number (64520521).

Almost surely, 2^129041041 is an apocalyptic number.

It is an amenable number.

129041041 is a deficient number, since it is larger than the sum of its proper divisors (1).

129041041 is an equidigital number, since it uses as much as digits as its factorization.

129041041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 129041041 is about 11359.6232772042. The cubic root of 129041041 is about 505.3310132543.

Adding to 129041041 its reverse (140140921), we get a palindrome (269181962).

The spelling of 129041041 in words is "one hundred twenty-nine million, forty-one thousand, forty-one".