104549 has 2 divisors, whose sum is σ = 104550. Its totient is φ = 104548.

The previous prime is 104543. The next prime is 104551. The reversal of 104549 is 945401.

It is a happy number.

104549 is nontrivially palindromic in base 12 and base 13.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 20449 = 290^2 + 143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104549 is a prime.

Together with 104551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52274 + 52275.

It is an arithmetic number, because the mean of its divisors is an integer number (52275).

2¹⁰⁴⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

104549 is a deficient number, since it is larger than the sum of its proper divisors (1).

104549 is an equidigital number, since it uses as much as digits as its factorization.

104549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 104549 is about 323.3403779301. The cubic root of 104549 is about 47.1092974675.

The spelling of 104549 in words is "one hundred four thousand, five hundred forty-nine".