1343268209 has 4 divisors (see below), whose sum is σ = 1422284004. Its totient is φ = 1264252416.

The previous prime is 1343268203. The next prime is 1343268229. The reversal of 1343268209 is 9028623431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609941809 + 733326400 = 24697^2 + 27080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343268209 - 2¹² = 1343264113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343268203) 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 in 3 ways as a sum of consecutive naturals, for example, 39507872 + ... + 39507905.

It is an arithmetic number, because the mean of its divisors is an integer number (355571001).

Almost surely, 2^1343268209 is an apocalyptic number.

It is an amenable number.

1343268209 is a deficient number, since it is larger than the sum of its proper divisors (79015795).

1343268209 is an equidigital number, since it uses as much as digits as its factorization.

1343268209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79015794.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1343268209 is about 36650.6235826896. The cubic root of 1343268209 is about 1103.3693409468.

The spelling of 1343268209 in words is "one billion, three hundred forty-three million, two hundred sixty-eight thousand, two hundred nine".