13506087 has 16 divisors (see below), whose sum is σ = 20701440. Its totient is φ = 7672512.

The previous prime is 13506079. The next prime is 13506091. The reversal of 13506087 is 78060531.

13506087 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13506087 - 2³ = 13506079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13506047) 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, 1963 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (1293840).

Almost surely, 2^13506087 is an apocalyptic number.

13506087 is a deficient number, since it is larger than the sum of its proper divisors (7195353).

13506087 is a wasteful number, since it uses less digits than its factorization.

13506087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782.

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

The square root of 13506087 is about 3675.0628566053. The cubic root of 13506087 is about 238.1459394927.

The spelling of 13506087 in words is "thirteen million, five hundred six thousand, eighty-seven".