13329971 has 2 divisors, whose sum is σ = 13329972. Its totient is φ = 13329970.

The previous prime is 13329923. The next prime is 13329973. The reversal of 13329971 is 17992331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13329971 - 2¹⁰ = 13328947 is a prime.

Together with 13329973, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (13329973) 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, 6664985 + 6664986.

It is an arithmetic number, because the mean of its divisors is an integer number (6664986).

Almost surely, 2^13329971 is an apocalyptic number.

13329971 is a deficient number, since it is larger than the sum of its proper divisors (1).

13329971 is an equidigital number, since it uses as much as digits as its factorization.

13329971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 35.

The square root of 13329971 is about 3651.0232812186. The cubic root of 13329971 is about 237.1062861887.

The spelling of 13329971 in words is "thirteen million, three hundred twenty-nine thousand, nine hundred seventy-one".