181849 has 8 divisors (see below), whose sum is σ = 203040. Its totient is φ = 161856.

The previous prime is 181837. The next prime is 181871. The reversal of 181849 is 948181.

181849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 181849 - 2⁷ = 181721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 181849.

It is not an unprimeable number, because it can be changed into a prime (181889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 604.

It is an arithmetic number, because the mean of its divisors is an integer number (25380).

2¹⁸¹⁸⁴⁹ is an apocalyptic number.

181849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

181849 is a deficient number, since it is larger than the sum of its proper divisors (21191).

181849 is a wasteful number, since it uses less digits than its factorization.

181849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its digits is 2304, while the sum is 31.

The square root of 181849 is about 426.4375687014. The cubic root of 181849 is about 56.6548341307.

The spelling of 181849 in words is "one hundred eighty-one thousand, eight hundred forty-nine".