182981 has 2 divisors, whose sum is σ = 182982. Its totient is φ = 182980.

The previous prime is 182969. The next prime is 182999. The reversal of 182981 is 189281.

182981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 70756 = 335^2 + 266^2 .

It is a cyclic number.

It is not a de Polignac number, because 182981 - 2¹⁰ = 181957 is a prime.

It is a super-2 number, since 2×182981² = 66964092722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91490 + 91491.

It is an arithmetic number, because the mean of its divisors is an integer number (91491).

2¹⁸²⁹⁸¹ is an apocalyptic number.

It is an amenable number.

182981 is a deficient number, since it is larger than the sum of its proper divisors (1).

182981 is an equidigital number, since it uses as much as digits as its factorization.

182981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 29.

The square root of 182981 is about 427.7627847300. The cubic root of 182981 is about 56.7721487804.

The spelling of 182981 in words is "one hundred eighty-two thousand, nine hundred eighty-one".