1345041457 has 2 divisors, whose sum is σ = 1345041458. Its totient is φ = 1345041456.

The previous prime is 1345041413. The next prime is 1345041487. The reversal of 1345041457 is 7541405431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1140007696 + 205033761 = 33764^2 + 14319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345041457 - 2⁷ = 1345041329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345041487) 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, 672520728 + 672520729.

It is an arithmetic number, because the mean of its divisors is an integer number (672520729).

Almost surely, 2^1345041457 is an apocalyptic number.

It is an amenable number.

1345041457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345041457 is an equidigital number, since it uses as much as digits as its factorization.

1345041457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1345041457 is about 36674.8068433905. The cubic root of 1345041457 is about 1103.8546466485.

Adding to 1345041457 its reverse (7541405431), we get a palindrome (8886446888).

The spelling of 1345041457 in words is "one billion, three hundred forty-five million, forty-one thousand, four hundred fifty-seven".