171290860 has 48 divisors (see below), whose sum is σ = 393202656. Its totient is φ = 62295552.

The previous prime is 171290857. The next prime is 171290863. The reversal of 171290860 is 68092171.

It is a happy number.

171290860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (171290857) and next prime (171290863).

It is not an unprimeable number, because it can be changed into a prime (171290863) 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, 12504 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (8191722).

Almost surely, 2^171290860 is an apocalyptic number.

171290860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171290860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196601328).

171290860 is an abundant number, since it is smaller than the sum of its proper divisors (221911796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171290860 is a wasteful number, since it uses less digits than its factorization.

171290860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9922 (or 9920 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 171290860 is about 13087.8134155404. The cubic root of 171290860 is about 555.3644334281.

The spelling of 171290860 in words is "one hundred seventy-one million, two hundred ninety thousand, eight hundred sixty".