13971147227 has 2 divisors, whose sum is σ = 13971147228. Its totient is φ = 13971147226.

The previous prime is 13971147221. The next prime is 13971147251. The reversal of 13971147227 is 72274117931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13971147227 - 2¹⁴ = 13971130843 is a prime.

It is not a weakly prime, because it can be changed into another prime (13971147221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985573613 + 6985573614.

It is an arithmetic number, because the mean of its divisors is an integer number (6985573614).

Almost surely, 2^13971147227 is an apocalyptic number.

13971147227 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971147227 is an equidigital number, since it uses as much as digits as its factorization.

13971147227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The spelling of 13971147227 in words is "thirteen billion, nine hundred seventy-one million, one hundred forty-seven thousand, two hundred twenty-seven".