13118305 has 8 divisors (see below), whose sum is σ = 16668072. Its totient is φ = 9877248.

The previous prime is 13118299. The next prime is 13118309. The reversal of 13118305 is 50381131.

13118305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4016016 + 9102289 = 2004^2 + 3017^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13118305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13118309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77082 + ... + 77251.

It is an arithmetic number, because the mean of its divisors is an integer number (2083509).

Almost surely, 2^13118305 is an apocalyptic number.

It is an amenable number.

13118305 is a deficient number, since it is larger than the sum of its proper divisors (3549767).

13118305 is a wasteful number, since it uses less digits than its factorization.

13118305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154355.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 13118305 is about 3621.9200709016. The cubic root of 13118305 is about 235.8445843070.

Adding to 13118305 its reverse (50381131), we get a palindrome (63499436).

The spelling of 13118305 in words is "thirteen million, one hundred eighteen thousand, three hundred five".