183381 has 8 divisors (see below), whose sum is σ = 266784. Its totient is φ = 111120.

The previous prime is 183377. The next prime is 183383.

183381 is nontrivially palindromic in base 10.

183381 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 not a de Polignac number, because 183381 - 2² = 183377 is a prime.

It is a super-2 number, since 2×183381² = 67257182322, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 183381.

It is not an unprimeable number, because it can be changed into a prime (183383) 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, 2746 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (33348).

2¹⁸³³⁸¹ is an apocalyptic number.

183381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

183381 is a deficient number, since it is larger than the sum of its proper divisors (83403).

183381 is a wasteful number, since it uses less digits than its factorization.

183381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571.

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

The square root of 183381 is about 428.2300783457. The cubic root of 183381 is about 56.8134870109.

The spelling of 183381 in words is "one hundred eighty-three thousand, three hundred eighty-one".