1345342697 has 2 divisors, whose sum is σ = 1345342698. Its totient is φ = 1345342696.

The previous prime is 1345342679. The next prime is 1345342727. The reversal of 1345342697 is 7962435431.

Together with previous prime (1345342679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1223880256 + 121462441 = 34984^2 + 11021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345342697 - 2²⁸ = 1076907241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345342667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672671348 + 672671349.

It is an arithmetic number, because the mean of its divisors is an integer number (672671349).

Almost surely, 2^1345342697 is an apocalyptic number.

It is an amenable number.

1345342697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345342697 is an equidigital number, since it uses as much as digits as its factorization.

1345342697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 1345342697 is about 36678.9135198959. The cubic root of 1345342697 is about 1103.9370481612.

The spelling of 1345342697 in words is "one billion, three hundred forty-five million, three hundred forty-two thousand, six hundred ninety-seven".