13571671 has 2 divisors, whose sum is σ = 13571672. Its totient is φ = 13571670.

The previous prime is 13571669. The next prime is 13571683. The reversal of 13571671 is 17617531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13571671 - 2¹ = 13571669 is a prime.

Together with 13571669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13571641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6785835 + 6785836.

It is an arithmetic number, because the mean of its divisors is an integer number (6785836).

Almost surely, 2^13571671 is an apocalyptic number.

13571671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13571671 is an equidigital number, since it uses as much as digits as its factorization.

13571671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 31.

The square root of 13571671 is about 3683.9748913368. The cubic root of 13571671 is about 238.5307869725.

The spelling of 13571671 in words is "thirteen million, five hundred seventy-one thousand, six hundred seventy-one".