13531186087 has 2 divisors, whose sum is σ = 13531186088. Its totient is φ = 13531186086.

The previous prime is 13531186073. The next prime is 13531186099. The reversal of 13531186087 is 78068113531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13531186087 - 2¹⁵ = 13531153319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531186027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765593043 + 6765593044.

It is an arithmetic number, because the mean of its divisors is an integer number (6765593044).

Almost surely, 2^13531186087 is an apocalyptic number.

13531186087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531186087 is an equidigital number, since it uses as much as digits as its factorization.

13531186087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 13531186087 in words is "thirteen billion, five hundred thirty-one million, one hundred eighty-six thousand, eighty-seven".