1234105345 has 8 divisors (see below), whose sum is σ = 1615556160. Its totient is φ = 897531120.

The previous prime is 1234105321. The next prime is 1234105349. The reversal of 1234105345 is 5435014321.

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

It is not a de Polignac number, because 1234105345 - 2¹⁵ = 1234072577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234105349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11219085 + ... + 11219194.

It is an arithmetic number, because the mean of its divisors is an integer number (201944520).

Almost surely, 2^1234105345 is an apocalyptic number.

It is an amenable number.

1234105345 is a deficient number, since it is larger than the sum of its proper divisors (381450815).

1234105345 is a wasteful number, since it uses less digits than its factorization.

1234105345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22438295.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1234105345 is about 35129.8355390400. The cubic root of 1234105345 is about 1072.6319882189.

Adding to 1234105345 its reverse (5435014321), we get a palindrome (6669119666).

The spelling of 1234105345 in words is "one billion, two hundred thirty-four million, one hundred five thousand, three hundred forty-five".