106549 has 4 divisors (see below), whose sum is σ = 108864. Its totient is φ = 104236.

The previous prime is 106543. The next prime is 106591. The reversal of 106549 is 945601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106549 - 2³ = 106541 is a prime.

It is a super-2 number, since 2×106549² = 22705378802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2¹⁰⁶⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

106549 is a deficient number, since it is larger than the sum of its proper divisors (2315).

106549 is an equidigital number, since it uses as much as digits as its factorization.

106549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 106549 is about 326.4184431064. The cubic root of 106549 is about 47.4077989861.

The spelling of 106549 in words is "one hundred six thousand, five hundred forty-nine".