129264041 has 8 divisors (see below), whose sum is σ = 130119240. Its totient is φ = 128412288.

The previous prime is 129264013. The next prime is 129264067. The reversal of 129264041 is 140462921.

It can be written as a sum of positive squares in 4 ways, for example, as 37027225 + 92236816 = 6085^2 + 9604^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129264041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129263995 and 129264013.

It is not an unprimeable number, because it can be changed into a prime (129264341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129155 + ... + 130151.

It is an arithmetic number, because the mean of its divisors is an integer number (16264905).

Almost surely, 2^129264041 is an apocalyptic number.

It is an amenable number.

129264041 is a deficient number, since it is larger than the sum of its proper divisors (855199).

129264041 is an equidigital number, since it uses as much as digits as its factorization.

129264041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 129264041 is about 11369.4345066059. The cubic root of 129264041 is about 505.6219386932.

The spelling of 129264041 in words is "one hundred twenty-nine million, two hundred sixty-four thousand, forty-one".