171251141 has 2 divisors, whose sum is σ = 171251142. Its totient is φ = 171251140.

The previous prime is 171251117. The next prime is 171251167. The reversal of 171251141 is 141152171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151413025 + 19838116 = 12305^2 + 4454^2 .

It is an emirp because it is prime and its reverse (141152171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171251141 - 2¹⁴ = 171234757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171251341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85625570 + 85625571.

It is an arithmetic number, because the mean of its divisors is an integer number (85625571).

Almost surely, 2^171251141 is an apocalyptic number.

It is an amenable number.

171251141 is a deficient number, since it is larger than the sum of its proper divisors (1).

171251141 is an equidigital number, since it uses as much as digits as its factorization.

171251141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 23.

The square root of 171251141 is about 13086.2959235989. The cubic root of 171251141 is about 555.3215040600.

The spelling of 171251141 in words is "one hundred seventy-one million, two hundred fifty-one thousand, one hundred forty-one".