171157317 has 8 divisors (see below), whose sum is σ = 228461760. Its totient is φ = 113978880.

The previous prime is 171157303. The next prime is 171157321. The reversal of 171157317 is 713751171.

171157317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 171157317 - 2⁶ = 171157253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171157517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28284 + ... + 33797.

It is an arithmetic number, because the mean of its divisors is an integer number (28557720).

Almost surely, 2^171157317 is an apocalyptic number.

It is an amenable number.

171157317 is a deficient number, since it is larger than the sum of its proper divisors (57304443).

171157317 is an equidigital number, since it uses as much as digits as its factorization.

171157317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63003.

The product of its digits is 5145, while the sum is 33.

The square root of 171157317 is about 13082.7106136305. The cubic root of 171157317 is about 555.2200701804.

The spelling of 171157317 in words is "one hundred seventy-one million, one hundred fifty-seven thousand, three hundred seventeen".