171000961 has 2 divisors, whose sum is σ = 171000962. Its totient is φ = 171000960.

The previous prime is 171000959. The next prime is 171000971. The reversal of 171000961 is 169000171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131813361 + 39187600 = 11481^2 + 6260^2 .

It is a cyclic number.

It is not a de Polignac number, because 171000961 - 2¹ = 171000959 is a prime.

Together with 171000959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (171000901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85500480 + 85500481.

It is an arithmetic number, because the mean of its divisors is an integer number (85500481).

Almost surely, 2^171000961 is an apocalyptic number.

It is an amenable number.

171000961 is a deficient number, since it is larger than the sum of its proper divisors (1).

171000961 is an equidigital number, since it uses as much as digits as its factorization.

171000961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 171000961 is about 13076.7335753238. The cubic root of 171000961 is about 555.0509500611.

The spelling of 171000961 in words is "one hundred seventy-one million, nine hundred sixty-one", and thus it is an aban number.