345140207 has 2 divisors, whose sum is σ = 345140208. Its totient is φ = 345140206.

The previous prime is 345140203. The next prime is 345140219. The reversal of 345140207 is 702041543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345140207 - 2² = 345140203 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345140203) 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, 172570103 + 172570104.

It is an arithmetic number, because the mean of its divisors is an integer number (172570104).

Almost surely, 2^345140207 is an apocalyptic number.

345140207 is a deficient number, since it is larger than the sum of its proper divisors (1).

345140207 is an equidigital number, since it uses as much as digits as its factorization.

345140207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 345140207 is about 18577.9494831911. The cubic root of 345140207 is about 701.4529054226.

The spelling of 345140207 in words is "three hundred forty-five million, one hundred forty thousand, two hundred seven".