1345645307 has 2 divisors, whose sum is σ = 1345645308. Its totient is φ = 1345645306.

The previous prime is 1345645277. The next prime is 1345645309. The reversal of 1345645307 is 7035465431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1345645307 - 2¹⁴ = 1345628923 is a prime.

It is a super-2 number, since 2×1345645307² = 3621522584502248498, which contains 22 as substring.

Together with 1345645309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1345645309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672822653 + 672822654.

It is an arithmetic number, because the mean of its divisors is an integer number (672822654).

Almost surely, 2^1345645307 is an apocalyptic number.

1345645307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345645307 is an equidigital number, since it uses as much as digits as its factorization.

1345645307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 1345645307 is about 36683.0384101426. The cubic root of 1345645307 is about 1104.0198120416.

The spelling of 1345645307 in words is "one billion, three hundred forty-five million, six hundred forty-five thousand, three hundred seven".