171000125205 has 64 divisors (see below), whose sum is σ = 336813711360. Its totient is φ = 72142223616.

The previous prime is 171000125137. The next prime is 171000125207. The reversal of 171000125205 is 502521000171.

It is not a de Polignac number, because 171000125205 - 2⁹ = 171000124693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171000125207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7664256 + ... + 7686534.

It is an arithmetic number, because the mean of its divisors is an integer number (5262714240).

Almost surely, 2^171000125205 is an apocalyptic number.

171000125205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

171000125205 is a deficient number, since it is larger than the sum of its proper divisors (165813586155).

171000125205 is a wasteful number, since it uses less digits than its factorization.

171000125205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27930.

The product of its (nonzero) digits is 700, while the sum is 24.

Adding to 171000125205 its reverse (502521000171), we get a palindrome (673521125376).

The spelling of 171000125205 in words is "one hundred seventy-one billion, one hundred twenty-five thousand, two hundred five".