1345066517 has 2 divisors, whose sum is σ = 1345066518. Its totient is φ = 1345066516.

The previous prime is 1345066511. The next prime is 1345066577. The reversal of 1345066517 is 7156605431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281210436 + 63856081 = 35794^2 + 7991^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345066517 - 2⁴ = 1345066501 is a prime.

It is a super-2 number, since 2×1345066517² = 3618407870309022578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345066511) 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 as a sum of consecutive naturals, namely, 672533258 + 672533259.

It is an arithmetic number, because the mean of its divisors is an integer number (672533259).

Almost surely, 2^1345066517 is an apocalyptic number.

It is an amenable number.

1345066517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345066517 is an equidigital number, since it uses as much as digits as its factorization.

1345066517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1345066517 is about 36675.1484932236. The cubic root of 1345066517 is about 1103.8615020569.

The spelling of 1345066517 in words is "one billion, three hundred forty-five million, sixty-six thousand, five hundred seventeen".