1309941329 has 2 divisors, whose sum is σ = 1309941330. Its totient is φ = 1309941328.

The previous prime is 1309941299. The next prime is 1309941461. The reversal of 1309941329 is 9231499031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193840704 + 116100625 = 34552^2 + 10775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1309941329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1309940329) 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, 654970664 + 654970665.

It is an arithmetic number, because the mean of its divisors is an integer number (654970665).

Almost surely, 2^1309941329 is an apocalyptic number.

It is an amenable number.

1309941329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309941329 is an equidigital number, since it uses as much as digits as its factorization.

1309941329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 1309941329 is about 36193.1116236225. Note that the first 3 decimals coincide. The cubic root of 1309941329 is about 1094.1678460357.

The spelling of 1309941329 in words is "one billion, three hundred nine million, nine hundred forty-one thousand, three hundred twenty-nine".