680122 has 4 divisors (see below), whose sum is σ = 1020186. Its totient is φ = 340060.

The previous prime is 680107. The next prime is 680123. The reversal of 680122 is 221086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221086 = 2 ⋅110543.

It can be written as a sum of positive squares in only one way, i.e., 398161 + 281961 = 631^2 + 531^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680122.

It is not an unprimeable number, because it can be changed into a prime (680123) by changing a digit.

680122 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 as a sum of consecutive naturals, namely, 170029 + ... + 170032.

2⁶⁸⁰¹²² is an apocalyptic number.

680122 is a deficient number, since it is larger than the sum of its proper divisors (340064).

680122 is a wasteful number, since it uses less digits than its factorization.

680122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340063.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 680122 is about 824.6950951715. The cubic root of 680122 is about 87.9418520818.

The spelling of 680122 in words is "six hundred eighty thousand, one hundred twenty-two".