13749021071 has 2 divisors, whose sum is σ = 13749021072. Its totient is φ = 13749021070.

The previous prime is 13749020981. The next prime is 13749021073. The reversal of 13749021071 is 17012094731.

13749021071 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 a cyclic number.

It is not a de Polignac number, because 13749021071 - 2³⁰ = 12675279247 is a prime.

Together with 13749021073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13749021073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6874510535 + 6874510536.

It is an arithmetic number, because the mean of its divisors is an integer number (6874510536).

Almost surely, 2^13749021071 is an apocalyptic number.

13749021071 is a deficient number, since it is larger than the sum of its proper divisors (1).

13749021071 is an equidigital number, since it uses as much as digits as its factorization.

13749021071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The spelling of 13749021071 in words is "thirteen billion, seven hundred forty-nine million, twenty-one thousand, seventy-one".