13006605 has 16 divisors (see below), whose sum is σ = 20856960. Its totient is φ = 6921408.

The previous prime is 13006589. The next prime is 13006613. The reversal of 13006605 is 50660031.

It is not a de Polignac number, because 13006605 - 2⁴ = 13006589 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10024 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (1303560).

Almost surely, 2^13006605 is an apocalyptic number.

13006605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13006605 is a deficient number, since it is larger than the sum of its proper divisors (7850355).

13006605 is a wasteful number, since it uses less digits than its factorization.

13006605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13006605 is about 3606.4671078495. The cubic root of 13006605 is about 235.1732839929.

Adding to 13006605 its reverse (50660031), we get a palindrome (63666636).

The spelling of 13006605 in words is "thirteen million, six thousand, six hundred five".