345534505 has 4 divisors (see below), whose sum is σ = 414641412. Its totient is φ = 276427600.

The previous prime is 345534479. The next prime is 345534517. The reversal of 345534505 is 505435543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505435543 = 281 ⋅1798703.

It can be written as a sum of positive squares in 2 ways, for example, as 239259024 + 106275481 = 15468^2 + 10309^2 .

It is not a de Polignac number, because 345534505 - 2¹¹ = 345532457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34553446 + ... + 34553455.

It is an arithmetic number, because the mean of its divisors is an integer number (103660353).

Almost surely, 2^345534505 is an apocalyptic number.

It is an amenable number.

345534505 is a deficient number, since it is larger than the sum of its proper divisors (69106907).

345534505 is an equidigital number, since it uses as much as digits as its factorization.

345534505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69106906.

The product of its (nonzero) digits is 90000, while the sum is 34.

The square root of 345534505 is about 18588.5584433005. The cubic root of 345534505 is about 701.7199236894.

The spelling of 345534505 in words is "three hundred forty-five million, five hundred thirty-four thousand, five hundred five".