345356317 has 2 divisors, whose sum is σ = 345356318. Its totient is φ = 345356316.

The previous prime is 345356299. The next prime is 345356351. The reversal of 345356317 is 713653543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336392281 + 8964036 = 18341^2 + 2994^2 .

It is a cyclic number.

It is not a de Polignac number, because 345356317 - 2⁷ = 345356189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345356387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172678158 + 172678159.

It is an arithmetic number, because the mean of its divisors is an integer number (172678159).

Almost surely, 2^345356317 is an apocalyptic number.

It is an amenable number.

345356317 is a deficient number, since it is larger than the sum of its proper divisors (1).

345356317 is an equidigital number, since it uses as much as digits as its factorization.

345356317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 37.

The square root of 345356317 is about 18583.7648769026. The cubic root of 345356317 is about 701.5992800994.

The spelling of 345356317 in words is "three hundred forty-five million, three hundred fifty-six thousand, three hundred seventeen".