345134305 has 4 divisors (see below), whose sum is σ = 414161172. Its totient is φ = 276107440.

The previous prime is 345134267. The next prime is 345134327. The reversal of 345134305 is 503431543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503431543 = 19 ⋅26496397.

It can be written as a sum of positive squares in 2 ways, for example, as 78269409 + 266864896 = 8847^2 + 16336^2 .

It is not a de Polignac number, because 345134305 - 2⁹ = 345133793 is a prime.

It is a super-3 number, since 3×345134305³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

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, 34513426 + ... + 34513435.

It is an arithmetic number, because the mean of its divisors is an integer number (103540293).

Almost surely, 2^345134305 is an apocalyptic number.

It is an amenable number.

345134305 is a deficient number, since it is larger than the sum of its proper divisors (69026867).

345134305 is an equidigital number, since it uses as much as digits as its factorization.

345134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69026866.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 345134305 is about 18577.7906382864. The cubic root of 345134305 is about 701.4489070489.

Adding to 345134305 its reverse (503431543), we get a palindrome (848565848).

The spelling of 345134305 in words is "three hundred forty-five million, one hundred thirty-four thousand, three hundred five".