171561060 has 108 divisors (see below), whose sum is σ = 572084604. Its totient is φ = 41585280.

The previous prime is 171561043. The next prime is 171561101. The reversal of 171561060 is 60165171.

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 128867904 = 6534^2 + 11352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17842 + ... + 25718.

Almost surely, 2^171561060 is an apocalyptic number.

171561060 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 171561060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286042302).

171561060 is an abundant number, since it is smaller than the sum of its proper divisors (400523544).

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

171561060 is a wasteful number, since it uses less digits than its factorization.

171561060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914 (or 7898 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 171561060 is about 13098.1319278743. The cubic root of 171561060 is about 555.6562969014.

The spelling of 171561060 in words is "one hundred seventy-one million, five hundred sixty-one thousand, sixty".