1343004457 has 2 divisors, whose sum is σ = 1343004458. Its totient is φ = 1343004456.

The previous prime is 1343004407. The next prime is 1343004463. The reversal of 1343004457 is 7544003431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967458816 + 375545641 = 31104^2 + 19379^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343004457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343004407) 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, 671502228 + 671502229.

It is an arithmetic number, because the mean of its divisors is an integer number (671502229).

Almost surely, 2^1343004457 is an apocalyptic number.

It is an amenable number.

1343004457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343004457 is an equidigital number, since it uses as much as digits as its factorization.

1343004457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 1343004457 is about 36647.0252135149. The cubic root of 1343004457 is about 1103.2971203440.

Adding to 1343004457 its reverse (7544003431), we get a palindrome (8887007888).

The spelling of 1343004457 in words is "one billion, three hundred forty-three million, four thousand, four hundred fifty-seven".