171071393 has 8 divisors (see below), whose sum is σ = 175441896. Its totient is φ = 166710400.

The previous prime is 171071359. The next prime is 171071429. The reversal of 171071393 is 393170171.

It can be written as a sum of positive squares in 4 ways, for example, as 43652449 + 127418944 = 6607^2 + 11288^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171071393 - 2¹² = 171067297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171071093) 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 in 7 ways as a sum of consecutive naturals, for example, 46655 + ... + 50187.

It is an arithmetic number, because the mean of its divisors is an integer number (21930237).

Almost surely, 2^171071393 is an apocalyptic number.

It is an amenable number.

171071393 is a deficient number, since it is larger than the sum of its proper divisors (4370503).

171071393 is a wasteful number, since it uses less digits than its factorization.

171071393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 171071393 is about 13079.4263253401. The cubic root of 171071393 is about 555.1271445305.

The spelling of 171071393 in words is "one hundred seventy-one million, seventy-one thousand, three hundred ninety-three".