104681 has 2 divisors, whose sum is σ = 104682. Its totient is φ = 104680.

The previous prime is 104677. The next prime is 104683. The reversal of 104681 is 186401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80656 + 24025 = 284^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 104681 - 2² = 104677 is a prime.

It is a super-2 number, since 2×104681² = 21916223522, which contains 22 as substring.

Together with 104683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52340 + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (52341).

2¹⁰⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

104681 is a deficient number, since it is larger than the sum of its proper divisors (1).

104681 is an equidigital number, since it uses as much as digits as its factorization.

104681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 104681 is about 323.5444328064. The cubic root of 104681 is about 47.1291153266.

The spelling of 104681 in words is "one hundred four thousand, six hundred eighty-one".