13087 has 4 divisors (see below), whose sum is σ = 13680. Its totient is φ = 12496.

The previous prime is 13063. The next prime is 13093. The reversal of 13087 is 78031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13087 - 2⁷ = 12959 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262 + ... + 307.

It is an arithmetic number, because the mean of its divisors is an integer number (3420).

2¹³⁰⁸⁷ is an apocalyptic number.

13087 is a deficient number, since it is larger than the sum of its proper divisors (593).

13087 is an equidigital number, since it uses as much as digits as its factorization.

13087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 13087 is about 114.3984265626. The cubic root of 13087 is about 23.5656831508.

The spelling of 13087 in words is "thirteen thousand, eighty-seven".