680126 has 4 divisors (see below), whose sum is σ = 1020192. Its totient is φ = 340062.

The previous prime is 680123. The next prime is 680129. The reversal of 680126 is 621086.

680126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (680123) and next prime (680129).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170030 + ... + 170033.

It is an arithmetic number, because the mean of its divisors is an integer number (255048).

2⁶⁸⁰¹²⁶ is an apocalyptic number.

680126 is a deficient number, since it is larger than the sum of its proper divisors (340066).

680126 is a wasteful number, since it uses less digits than its factorization.

680126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340065.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 680126 is about 824.6975203067. The cubic root of 680126 is about 87.9420244856.

The spelling of 680126 in words is "six hundred eighty thousand, one hundred twenty-six".