345042017 has 2 divisors, whose sum is σ = 345042018. Its totient is φ = 345042016.

The previous prime is 345042001. The next prime is 345042077. The reversal of 345042017 is 710240543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344807761 + 234256 = 18569^2 + 484^2 .

It is a cyclic number.

It is not a de Polignac number, because 345042017 - 2⁴ = 345042001 is a prime.

It is not a weakly prime, because it can be changed into another prime (345042077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172521008 + 172521009.

It is an arithmetic number, because the mean of its divisors is an integer number (172521009).

Almost surely, 2^345042017 is an apocalyptic number.

It is an amenable number.

345042017 is a deficient number, since it is larger than the sum of its proper divisors (1).

345042017 is an equidigital number, since it uses as much as digits as its factorization.

345042017 is an evil number, because the sum of its binary digits is even.

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

The square root of 345042017 is about 18575.3066461903. The cubic root of 345042017 is about 701.3863796147.

The spelling of 345042017 in words is "three hundred forty-five million, forty-two thousand, seventeen".