13947107243 has 2 divisors, whose sum is σ = 13947107244. Its totient is φ = 13947107242.

The previous prime is 13947107203. The next prime is 13947107281. The reversal of 13947107243 is 34270174931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13947107243 - 2⁶ = 13947107179 is a prime.

It is a super-2 number, since 2×13947107243² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13947107243.

It is not a weakly prime, because it can be changed into another prime (13947107203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973553621 + 6973553622.

It is an arithmetic number, because the mean of its divisors is an integer number (6973553622).

Almost surely, 2^13947107243 is an apocalyptic number.

13947107243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13947107243 is an equidigital number, since it uses as much as digits as its factorization.

13947107243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 13947107243 in words is "thirteen billion, nine hundred forty-seven million, one hundred seven thousand, two hundred forty-three".