129579041 has 2 divisors, whose sum is σ = 129579042. Its totient is φ = 129579040.

The previous prime is 129579029. The next prime is 129579077. The reversal of 129579041 is 140975921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 8579041 = 11000^2 + 2929^2 .

It is a cyclic number.

It is not a de Polignac number, because 129579041 - 2²² = 125384737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129578986 and 129579004.

It is not a weakly prime, because it can be changed into another prime (129579341) 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 as a sum of consecutive naturals, namely, 64789520 + 64789521.

It is an arithmetic number, because the mean of its divisors is an integer number (64789521).

Almost surely, 2^129579041 is an apocalyptic number.

It is an amenable number.

129579041 is a deficient number, since it is larger than the sum of its proper divisors (1).

129579041 is an equidigital number, since it uses as much as digits as its factorization.

129579041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 129579041 is about 11383.2790091432. The cubic root of 129579041 is about 506.0323176097.

The spelling of 129579041 in words is "one hundred twenty-nine million, five hundred seventy-nine thousand, forty-one".