13091471 has 2 divisors, whose sum is σ = 13091472. Its totient is φ = 13091470.

The previous prime is 13091467. The next prime is 13091473. The reversal of 13091471 is 17419031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13091471 - 2² = 13091467 is a prime.

It is a super-3 number, since 3×13091471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 13091473, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13091471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13091473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6545735 + 6545736.

It is an arithmetic number, because the mean of its divisors is an integer number (6545736).

Almost surely, 2^13091471 is an apocalyptic number.

13091471 is a deficient number, since it is larger than the sum of its proper divisors (1).

13091471 is an equidigital number, since it uses as much as digits as its factorization.

13091471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 13091471 is about 3618.2137858341. The cubic root of 13091471 is about 235.6836647966.

The spelling of 13091471 in words is "thirteen million, ninety-one thousand, four hundred seventy-one".