680142 has 8 divisors (see below), whose sum is σ = 1360296. Its totient is φ = 226712.

The previous prime is 680129. The next prime is 680159. The reversal of 680142 is 241086.

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

680142 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680142.

It is an unprimeable number.

680142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56673 + ... + 56684.

It is an arithmetic number, because the mean of its divisors is an integer number (170037).

2⁶⁸⁰¹⁴² is an apocalyptic number.

680142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

680142 is a wasteful number, since it uses less digits than its factorization.

680142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113362.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 680142 is about 824.7072207760. The cubic root of 680142 is about 87.9427140937.

The spelling of 680142 in words is "six hundred eighty thousand, one hundred forty-two".