171708327137 has 2 divisors, whose sum is σ = 171708327138. Its totient is φ = 171708327136.

The previous prime is 171708327103. The next prime is 171708327157. The reversal of 171708327137 is 731723807171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150209729761 + 21498597376 = 387569^2 + 146624^2 .

It is a cyclic number.

It is not a de Polignac number, because 171708327137 - 2¹⁸ = 171708064993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171708327091 and 171708327100.

It is not a weakly prime, because it can be changed into another prime (171708327157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85854163568 + 85854163569.

It is an arithmetic number, because the mean of its divisors is an integer number (85854163569).

Almost surely, 2^171708327137 is an apocalyptic number.

It is an amenable number.

171708327137 is a deficient number, since it is larger than the sum of its proper divisors (1).

171708327137 is an equidigital number, since it uses as much as digits as its factorization.

171708327137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 47.

The spelling of 171708327137 in words is "one hundred seventy-one billion, seven hundred eight million, three hundred twenty-seven thousand, one hundred thirty-seven".