82149 has 8 divisors (see below), whose sum is σ = 110880. Its totient is φ = 54096.

The previous prime is 82141. The next prime is 82153. The reversal of 82149 is 94128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82149 - 2³ = 82141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82141) 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 7 ways as a sum of consecutive naturals, for example, 319 + ... + 515.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2⁸²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

82149 is a deficient number, since it is larger than the sum of its proper divisors (28731).

82149 is a wasteful number, since it uses less digits than its factorization.

82149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its digits is 576, while the sum is 24.

The square root of 82149 is about 286.6164684731. The cubic root of 82149 is about 43.4711130713.

It can be divided in two parts, 82 and 149, that added together give a triangular number (231 = T₂₁).

The spelling of 82149 in words is "eighty-two thousand, one hundred forty-nine".