171352081 has 2 divisors, whose sum is σ = 171352082. Its totient is φ = 171352080.

The previous prime is 171352073. The next prime is 171352099. The reversal of 171352081 is 180253171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164249856 + 7102225 = 12816^2 + 2665^2 .

It is a cyclic number.

It is not a de Polignac number, because 171352081 - 2³ = 171352073 is a prime.

It is a super-2 number, since 2×171352081² = 58723071326061122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (171352381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85676040 + 85676041.

It is an arithmetic number, because the mean of its divisors is an integer number (85676041).

Almost surely, 2^171352081 is an apocalyptic number.

It is an amenable number.

171352081 is a deficient number, since it is larger than the sum of its proper divisors (1).

171352081 is an equidigital number, since it uses as much as digits as its factorization.

171352081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 171352081 is about 13090.1520617600. The cubic root of 171352081 is about 555.4305897429.

The spelling of 171352081 in words is "one hundred seventy-one million, three hundred fifty-two thousand, eighty-one".