7171171061 has 2 divisors, whose sum is σ = 7171171062. Its totient is φ = 7171171060.

The previous prime is 7171171057. The next prime is 7171171067. The reversal of 7171171061 is 1601711717.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4268008900 + 2903162161 = 65330^2 + 53881^2 .

It is a cyclic number.

It is not a de Polignac number, because 7171171061 - 2² = 7171171057 is a prime.

It is a super-2 number, since 2×7171171061² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7171171067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3585585530 + 3585585531.

It is an arithmetic number, because the mean of its divisors is an integer number (3585585531).

Almost surely, 2^7171171061 is an apocalyptic number.

It is an amenable number.

7171171061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7171171061 is an equidigital number, since it uses as much as digits as its factorization.

7171171061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2058, while the sum is 32.

The square root of 7171171061 is about 84682.7672020701. The cubic root of 7171171061 is about 1928.3980963622.

Adding to 7171171061 its reverse (1601711717), we get a palindrome (8772882778).

The spelling of 7171171061 in words is "seven billion, one hundred seventy-one million, one hundred seventy-one thousand, sixty-one".