171000001 has 2 divisors, whose sum is σ = 171000002. Its totient is φ = 171000000.

The previous prime is 170999951. The next prime is 171000031. The reversal of 171000001 is 100000171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170981776 + 18225 = 13076^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 171000001 - 2¹³ = 170991809 is a prime.

It is not a weakly prime, because it can be changed into another prime (171000031) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85500000 + 85500001.

It is an arithmetic number, because the mean of its divisors is an integer number (85500001).

Almost surely, 2^171000001 is an apocalyptic number.

It is an amenable number.

171000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

171000001 is an equidigital number, since it uses as much as digits as its factorization.

171000001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 171000001 is about 13076.6968688580. The cubic root of 171000001 is about 555.0499113731.

Adding to 171000001 its reverse (100000171), we get a palindrome (271000172).

The spelling of 171000001 in words is "one hundred seventy-one million, one", and thus it is an aban number.