3171434873 has 2 divisors, whose sum is σ = 3171434874. Its totient is φ = 3171434872.

The previous prime is 3171434869. The next prime is 3171434891. The reversal of 3171434873 is 3784341713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1873418089 + 1298016784 = 43283^2 + 36028^2 .

It is an emirp because it is prime and its reverse (3784341713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3171434873 - 2² = 3171434869 is a prime.

It is a super-2 number, since 2×3171434873² = 20115998307361052258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3171434873.

It is not a weakly prime, because it can be changed into another prime (3171434803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585717436 + 1585717437.

It is an arithmetic number, because the mean of its divisors is an integer number (1585717437).

Almost surely, 2^3171434873 is an apocalyptic number.

It is an amenable number.

3171434873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3171434873 is an equidigital number, since it uses as much as digits as its factorization.

3171434873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 3171434873 is about 56315.4940757870. The cubic root of 3171434873 is about 1469.2147028050.

The spelling of 3171434873 in words is "three billion, one hundred seventy-one million, four hundred thirty-four thousand, eight hundred seventy-three".