171140345 has 8 divisors (see below), whose sum is σ = 205450440. Its totient is φ = 136857600.

The previous prime is 171140341. The next prime is 171140351. The reversal of 171140345 is 543041171.

It can be written as a sum of positive squares in 4 ways, for example, as 2036329 + 169104016 = 1427^2 + 13004^2 .

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

It is not a de Polignac number, because 171140345 - 2² = 171140341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171140341) 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, 11321 + ... + 21689.

It is an arithmetic number, because the mean of its divisors is an integer number (25681305).

Almost surely, 2^171140345 is an apocalyptic number.

It is an amenable number.

171140345 is a deficient number, since it is larger than the sum of its proper divisors (34310095).

171140345 is a wasteful number, since it uses less digits than its factorization.

171140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 171140345 is about 13082.0619552118. The cubic root of 171140345 is about 555.2017176559.

The spelling of 171140345 in words is "one hundred seventy-one million, one hundred forty thousand, three hundred forty-five".