681126 has 16 divisors (see below), whose sum is σ = 1385328. Its totient is φ = 223200.

The previous prime is 681113. The next prime is 681127. The reversal of 681126 is 621186.

It is a junction number, because it is equal to n+sod(n) for n = 681096 and 681105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681127) by changing a digit.

681126 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 7 ways as a sum of consecutive naturals, for example, 565 + ... + 1296.

It is an arithmetic number, because the mean of its divisors is an integer number (86583).

2⁶⁸¹¹²⁶ is an apocalyptic number.

681126 is an abundant number, since it is smaller than the sum of its proper divisors (704202).

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

681126 is a wasteful number, since it uses less digits than its factorization.

681126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927.

The product of its digits is 576, while the sum is 24.

The square root of 681126 is about 825.3035805084. The cubic root of 681126 is about 87.9851042280.

The spelling of 681126 in words is "six hundred eighty-one thousand, one hundred twenty-six".