345243265 has 4 divisors (see below), whose sum is σ = 414291924. Its totient is φ = 276194608.

The previous prime is 345243257. The next prime is 345243299. The reversal of 345243265 is 562342543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562342543 = 7 ⋅80334649.

It can be written as a sum of positive squares in 2 ways, for example, as 226171521 + 119071744 = 15039^2 + 10912^2 .

It is a cyclic number.

It is not a de Polignac number, because 345243265 - 2³ = 345243257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345243265.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34524322 + ... + 34524331.

It is an arithmetic number, because the mean of its divisors is an integer number (103572981).

Almost surely, 2^345243265 is an apocalyptic number.

It is an amenable number.

345243265 is a deficient number, since it is larger than the sum of its proper divisors (69048659).

345243265 is an equidigital number, since it uses as much as digits as its factorization.

345243265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69048658.

The product of its digits is 86400, while the sum is 34.

The square root of 345243265 is about 18580.7229407254. The cubic root of 345243265 is about 701.5227158340.

The spelling of 345243265 in words is "three hundred forty-five million, two hundred forty-three thousand, two hundred sixty-five".