171052201 has 2 divisors, whose sum is σ = 171052202. Its totient is φ = 171052200.

The previous prime is 171052199. The next prime is 171052267. The reversal of 171052201 is 102250171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170563600 + 488601 = 13060^2 + 699^2 .

It is a cyclic number.

It is not a de Polignac number, because 171052201 - 2¹ = 171052199 is a prime.

Together with 171052199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (171052291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85526100 + 85526101.

It is an arithmetic number, because the mean of its divisors is an integer number (85526101).

Almost surely, 2^171052201 is an apocalyptic number.

It is an amenable number.

171052201 is a deficient number, since it is larger than the sum of its proper divisors (1).

171052201 is an equidigital number, since it uses as much as digits as its factorization.

171052201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 171052201 is about 13078.6926334401. The cubic root of 171052201 is about 555.1063843897.

It can be divided in two parts, 17105 and 2201, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 171052201 in words is "one hundred seventy-one million, fifty-two thousand, two hundred one".