345305105 has 8 divisors (see below), whose sum is σ = 438740712. Its totient is φ = 259994368.

The previous prime is 345305101. The next prime is 345305113. The reversal of 345305105 is 501503543.

It can be written as a sum of positive squares in 4 ways, for example, as 141158161 + 204146944 = 11881^2 + 14288^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345305105 - 2² = 345305101 is a prime.

It is a super-2 number, since 2×345305105² = 238471231078122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345305101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2031122 + ... + 2031291.

It is an arithmetic number, because the mean of its divisors is an integer number (54842589).

Almost surely, 2^345305105 is an apocalyptic number.

It is an amenable number.

345305105 is a deficient number, since it is larger than the sum of its proper divisors (93435607).

345305105 is a wasteful number, since it uses less digits than its factorization.

345305105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062435.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 345305105 is about 18582.3869564704. The cubic root of 345305105 is about 701.5645989342.

Adding to 345305105 its reverse (501503543), we get a palindrome (846808648).

The spelling of 345305105 in words is "three hundred forty-five million, three hundred five thousand, one hundred five".