13004305 has 8 divisors (see below), whose sum is σ = 15766632. Its totient is φ = 10295808.

The previous prime is 13004297. The next prime is 13004311. The reversal of 13004305 is 50340031.

It can be written as a sum of positive squares in 4 ways, for example, as 2193361 + 10810944 = 1481^2 + 3288^2 .

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 13004305 - 2³ = 13004297 is a prime.

It is a super-2 number, since 2×13004305² = 338223897066050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 12922 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (1970829).

Almost surely, 2^13004305 is an apocalyptic number.

It is an amenable number.

13004305 is a deficient number, since it is larger than the sum of its proper divisors (2762327).

13004305 is an equidigital number, since it uses as much as digits as its factorization.

13004305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26915.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13004305 is about 3606.1482221340. The cubic root of 13004305 is about 235.1594210251.

Adding to 13004305 its reverse (50340031), we get a palindrome (63344336).

The spelling of 13004305 in words is "thirteen million, four thousand, three hundred five".