13973171 has 2 divisors, whose sum is σ = 13973172. Its totient is φ = 13973170.

The previous prime is 13973131. The next prime is 13973173. The reversal of 13973171 is 17137931.

It is a strong prime.

It is an emirp because it is prime and its reverse (17137931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13973171 is a prime.

Together with 13973173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13973173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6986585 + 6986586.

It is an arithmetic number, because the mean of its divisors is an integer number (6986586).

Almost surely, 2^13973171 is an apocalyptic number.

13973171 is a deficient number, since it is larger than the sum of its proper divisors (1).

13973171 is an equidigital number, since it uses as much as digits as its factorization.

13973171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3969, while the sum is 32.

The square root of 13973171 is about 3738.0704915772. The cubic root of 13973171 is about 240.8601715227.

The spelling of 13973171 in words is "thirteen million, nine hundred seventy-three thousand, one hundred seventy-one".