681167 has 2 divisors, whose sum is σ = 681168. Its totient is φ = 681166.

The previous prime is 681151. The next prime is 681179. The reversal of 681167 is 761186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 681167 - 2⁴ = 681151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (681127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340583 + 340584.

It is an arithmetic number, because the mean of its divisors is an integer number (340584).

2⁶⁸¹¹⁶⁷ is an apocalyptic number.

681167 is a deficient number, since it is larger than the sum of its proper divisors (1).

681167 is an equidigital number, since it uses as much as digits as its factorization.

681167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 681167 is about 825.3284194792. The cubic root of 681167 is about 87.9868695974.

It can be divided in two parts, 681 and 167, that added together give a palindrome (848).

The spelling of 681167 in words is "six hundred eighty-one thousand, one hundred sixty-seven".