13530871 has 2 divisors, whose sum is σ = 13530872. Its totient is φ = 13530870.

The previous prime is 13530857. The next prime is 13530889. The reversal of 13530871 is 17803531.

It is a weak prime.

It is an emirp because it is prime and its reverse (17803531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13530871 - 2⁹ = 13530359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765435 + 6765436.

It is an arithmetic number, because the mean of its divisors is an integer number (6765436).

Almost surely, 2^13530871 is an apocalyptic number.

13530871 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530871 is an equidigital number, since it uses as much as digits as its factorization.

13530871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13530871 is about 3678.4332262527. The cubic root of 13530871 is about 238.2915183567.

The spelling of 13530871 in words is "thirteen million, five hundred thirty thousand, eight hundred seventy-one".