13043971 has 2 divisors, whose sum is σ = 13043972. Its totient is φ = 13043970.

The previous prime is 13043969. The next prime is 13043983. The reversal of 13043971 is 17934031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13043971 - 2¹ = 13043969 is a prime.

Together with 13043969, 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 (13043911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521985 + 6521986.

It is an arithmetic number, because the mean of its divisors is an integer number (6521986).

Almost surely, 2^13043971 is an apocalyptic number.

13043971 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043971 is an equidigital number, since it uses as much as digits as its factorization.

13043971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13043971 is about 3611.6438085725. The cubic root of 13043971 is about 235.3982743804.

The spelling of 13043971 in words is "thirteen million, forty-three thousand, nine hundred seventy-one".