3171865061 has 2 divisors, whose sum is σ = 3171865062. Its totient is φ = 3171865060.

The previous prime is 3171865051. The next prime is 3171865069. The reversal of 3171865061 is 1605681713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2301024961 + 870840100 = 47969^2 + 29510^2 .

It is a cyclic number.

It is not a de Polignac number, because 3171865061 - 2¹⁰ = 3171864037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3171865069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585932530 + 1585932531.

It is an arithmetic number, because the mean of its divisors is an integer number (1585932531).

Almost surely, 2^3171865061 is an apocalyptic number.

It is an amenable number.

3171865061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3171865061 is an equidigital number, since it uses as much as digits as its factorization.

3171865061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 3171865061 is about 56319.3133924767. The cubic root of 3171865061 is about 1469.2811301462.

The spelling of 3171865061 in words is "three billion, one hundred seventy-one million, eight hundred sixty-five thousand, sixty-one".