1309941299 has 2 divisors, whose sum is σ = 1309941300. Its totient is φ = 1309941298.

The previous prime is 1309941289. The next prime is 1309941329. The reversal of 1309941299 is 9921499031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1309941299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1309941209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654970649 + 654970650.

It is an arithmetic number, because the mean of its divisors is an integer number (654970650).

Almost surely, 2^1309941299 is an apocalyptic number.

1309941299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309941299 is an equidigital number, since it uses as much as digits as its factorization.

1309941299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 1309941299 is about 36193.1112091790. Note that the first 3 decimals coincide. The cubic root of 1309941299 is about 1094.1678376829.

The spelling of 1309941299 in words is "one billion, three hundred nine million, nine hundred forty-one thousand, two hundred ninety-nine".