1343003449 has 2 divisors, whose sum is σ = 1343003450. Its totient is φ = 1343003448.

The previous prime is 1343003447. The next prime is 1343003549. The reversal of 1343003449 is 9443003431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938993449 + 404010000 = 30643^2 + 20100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343003449 - 2¹ = 1343003447 is a prime.

Together with 1343003447, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1343003449.

It is not a weakly prime, because it can be changed into another prime (1343003447) 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, 671501724 + 671501725.

It is an arithmetic number, because the mean of its divisors is an integer number (671501725).

Almost surely, 2^1343003449 is an apocalyptic number.

It is an amenable number.

1343003449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343003449 is an equidigital number, since it uses as much as digits as its factorization.

1343003449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1343003449 is about 36647.0114606908. The cubic root of 1343003449 is about 1103.2968443151.

The spelling of 1343003449 in words is "one billion, three hundred forty-three million, three thousand, four hundred forty-nine".