13791571 has 2 divisors, whose sum is σ = 13791572. Its totient is φ = 13791570.

The previous prime is 13791541. The next prime is 13791581. The reversal of 13791571 is 17519731.

13791571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (17519731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13791571 - 2¹⁵ = 13758803 is a prime.

It is not a weakly prime, because it can be changed into another prime (13791521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6895785 + 6895786.

It is an arithmetic number, because the mean of its divisors is an integer number (6895786).

Almost surely, 2^13791571 is an apocalyptic number.

13791571 is a deficient number, since it is larger than the sum of its proper divisors (1).

13791571 is an equidigital number, since it uses as much as digits as its factorization.

13791571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615, while the sum is 34.

The square root of 13791571 is about 3713.7004456472. The cubic root of 13791571 is about 239.8121852377.

The spelling of 13791571 in words is "thirteen million, seven hundred ninety-one thousand, five hundred seventy-one".