681163 has 16 divisors (see below), whose sum is σ = 833536. Its totient is φ = 544320.

The previous prime is 681151. The next prime is 681167. The reversal of 681163 is 361186.

681163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 681163 - 2⁹ = 680651 is a prime.

It is a Duffinian number.

681163 is a lucky number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (681167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9295 + ... + 9367.

It is an arithmetic number, because the mean of its divisors is an integer number (52096).

2⁶⁸¹¹⁶³ is an apocalyptic number.

681163 is a deficient number, since it is larger than the sum of its proper divisors (152373).

681163 is a wasteful number, since it uses less digits than its factorization.

681163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its digits is 864, while the sum is 25.

The square root of 681163 is about 825.3259961979. The cubic root of 681163 is about 87.9866973694.

The spelling of 681163 in words is "six hundred eighty-one thousand, one hundred sixty-three".