13087605 has 16 divisors (see below), whose sum is σ = 20994624. Its totient is φ = 6961920.

The previous prime is 13087601. The next prime is 13087631. The reversal of 13087605 is 50678031.

It is not a de Polignac number, because 13087605 - 2² = 13087601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6477 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (1312164).

Almost surely, 2^13087605 is an apocalyptic number.

13087605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13087605 is a deficient number, since it is larger than the sum of its proper divisors (7907019).

13087605 is a wasteful number, since it uses less digits than its factorization.

13087605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 13087605 is about 3617.6795048760. The cubic root of 13087605 is about 235.6604628521.

The spelling of 13087605 in words is "thirteen million, eighty-seven thousand, six hundred five".