13091271 has 8 divisors (see below), whose sum is σ = 17741424. Its totient is φ = 8584320.

The previous prime is 13091263. The next prime is 13091279. The reversal of 13091271 is 17219031.

It is an interprime number because it is at equal distance from previous prime (13091263) and next prime (13091279).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13091271 - 2³ = 13091263 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13091279) 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 in 7 ways as a sum of consecutive naturals, for example, 35586 + ... + 35951.

It is an arithmetic number, because the mean of its divisors is an integer number (2217678).

Almost surely, 2^13091271 is an apocalyptic number.

13091271 is a deficient number, since it is larger than the sum of its proper divisors (4650153).

13091271 is an equidigital number, since it uses as much as digits as its factorization.

13091271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71601.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 13091271 is about 3618.1861477818. The cubic root of 13091271 is about 235.6824646011.

The spelling of 13091271 in words is "thirteen million, ninety-one thousand, two hundred seventy-one".