104999 has 2 divisors, whose sum is σ = 105000. Its totient is φ = 104998.

The previous prime is 104987. The next prime is 105019. The reversal of 104999 is 999401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104999 - 2⁸ = 104743 is a prime.

It is a super-2 number, since 2×104999² = 22049580002, which contains 22 as substring.

104999 is a modest number, since divided by 999 gives 104 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 104999.

It is not a weakly prime, because it can be changed into another prime (104959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52499 + 52500.

It is an arithmetic number, because the mean of its divisors is an integer number (52500).

2¹⁰⁴⁹⁹⁹ is an apocalyptic number.

104999 is a deficient number, since it is larger than the sum of its proper divisors (1).

104999 is an equidigital number, since it uses as much as digits as its factorization.

104999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 104999 is about 324.0354918832. The cubic root of 104999 is about 47.1767900346.

The spelling of 104999 in words is "one hundred four thousand, nine hundred ninety-nine".