13992271 has 2 divisors, whose sum is σ = 13992272. Its totient is φ = 13992270.

The previous prime is 13992259. The next prime is 13992281. The reversal of 13992271 is 17229931.

It is a happy number.

13992271 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 (17229931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13992271 - 2¹⁵ = 13959503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13992281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6996135 + 6996136.

It is an arithmetic number, because the mean of its divisors is an integer number (6996136).

Almost surely, 2^13992271 is an apocalyptic number.

13992271 is a deficient number, since it is larger than the sum of its proper divisors (1).

13992271 is an equidigital number, since it uses as much as digits as its factorization.

13992271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 34.

The square root of 13992271 is about 3740.6244131161. The cubic root of 13992271 is about 240.9698658970.

The spelling of 13992271 in words is "thirteen million, nine hundred ninety-two thousand, two hundred seventy-one".