680181 has 8 divisors (see below), whose sum is σ = 954720. Its totient is φ = 429552.

The previous prime is 680177. The next prime is 680189. The reversal of 680181 is 181086.

680181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 680181 - 2² = 680177 is a prime.

It is a super-2 number, since 2×680181² = 925292385522, which contains 22 as substring.

680181 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680189) 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, 5910 + ... + 6023.

It is an arithmetic number, because the mean of its divisors is an integer number (119340).

2⁶⁸⁰¹⁸¹ is an apocalyptic number.

It is an amenable number.

680181 is a deficient number, since it is larger than the sum of its proper divisors (274539).

680181 is a wasteful number, since it uses less digits than its factorization.

680181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11955.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 680181 is about 824.7308651918. The cubic root of 680181 is about 87.9443949684.

It can be divided in two parts, 680 and 181, that added together give a triangular number (861 = T₄₁).

The spelling of 680181 in words is "six hundred eighty thousand, one hundred eighty-one".