13171943 has 2 divisors, whose sum is σ = 13171944. Its totient is φ = 13171942.

The previous prime is 13171937. The next prime is 13171973. The reversal of 13171943 is 34917131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13171943 - 2⁸ = 13171687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13171903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585971 + 6585972.

It is an arithmetic number, because the mean of its divisors is an integer number (6585972).

Almost surely, 2^13171943 is an apocalyptic number.

13171943 is a deficient number, since it is larger than the sum of its proper divisors (1).

13171943 is an equidigital number, since it uses as much as digits as its factorization.

13171943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 13171943 is about 3629.3171534050. The cubic root of 13171943 is about 236.1655868931.

The spelling of 13171943 in words is "thirteen million, one hundred seventy-one thousand, nine hundred forty-three".