171057117 has 32 divisors (see below), whose sum is σ = 285917184. Its totient is φ = 88372800.

The previous prime is 171057113. The next prime is 171057119. The reversal of 171057117 is 711750171.

It is a happy number.

It is not a de Polignac number, because 171057117 - 2² = 171057113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171057113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42183 + ... + 46059.

It is an arithmetic number, because the mean of its divisors is an integer number (8934912).

Almost surely, 2^171057117 is an apocalyptic number.

It is an amenable number.

171057117 is a deficient number, since it is larger than the sum of its proper divisors (114860067).

171057117 is a wasteful number, since it uses less digits than its factorization.

171057117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089.

The product of its (nonzero) digits is 1715, while the sum is 30.

The square root of 171057117 is about 13078.8805713639. The cubic root of 171057117 is about 555.1117022144. Note that the first 3 decimals are identical.

The spelling of 171057117 in words is "one hundred seventy-one million, fifty-seven thousand, one hundred seventeen".