345133717 has 2 divisors, whose sum is σ = 345133718. Its totient is φ = 345133716.

The previous prime is 345133681. The next prime is 345133729. The reversal of 345133717 is 717331543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341843121 + 3290596 = 18489^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 345133717 - 2⁷ = 345133589 is a prime.

It is a super-3 number, since 3×345133717³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345133787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172566858 + 172566859.

It is an arithmetic number, because the mean of its divisors is an integer number (172566859).

Almost surely, 2^345133717 is an apocalyptic number.

It is an amenable number.

345133717 is a deficient number, since it is larger than the sum of its proper divisors (1).

345133717 is an equidigital number, since it uses as much as digits as its factorization.

345133717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 34.

The square root of 345133717 is about 18577.7748129317. The cubic root of 345133717 is about 701.4485086994.

The spelling of 345133717 in words is "three hundred forty-five million, one hundred thirty-three thousand, seven hundred seventeen".