171406145117 has 16 divisors (see below), whose sum is σ = 173979709680. Its totient is φ = 168850096128.

The previous prime is 171406145111. The next prime is 171406145143. The reversal of 171406145117 is 711541604171.

It can be written as a sum of positive squares in 8 ways, for example, as 133494916 + 171272650201 = 11554^2 + 413851^2 .

It is a cyclic number.

It is not a de Polignac number, because 171406145117 - 2²⁴ = 171389367901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171406145111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63742109 + ... + 63744797.

It is an arithmetic number, because the mean of its divisors is an integer number (10873731855).

Almost surely, 2^171406145117 is an apocalyptic number.

It is an amenable number.

171406145117 is a deficient number, since it is larger than the sum of its proper divisors (2573564563).

171406145117 is a wasteful number, since it uses less digits than its factorization.

171406145117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600.

The product of its (nonzero) digits is 23520, while the sum is 38.

Adding to 171406145117 its reverse (711541604171), we get a palindrome (882947749288).

The spelling of 171406145117 in words is "one hundred seventy-one billion, four hundred six million, one hundred forty-five thousand, one hundred seventeen".