381133 has 8 divisors (see below), whose sum is σ = 404928. Its totient is φ = 357984.

The previous prime is 381103. The next prime is 381167. The reversal of 381133 is 331183.

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 381133 - 2⁹ = 380621 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 381133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381103) 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, 1566 + ... + 1792.

It is an arithmetic number, because the mean of its divisors is an integer number (50616).

2³⁸¹¹³³ is an apocalyptic number.

It is an amenable number.

381133 is a deficient number, since it is larger than the sum of its proper divisors (23795).

381133 is a wasteful number, since it uses less digits than its factorization.

381133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its digits is 216, while the sum is 19.

The square root of 381133 is about 617.3597006608. The cubic root of 381133 is about 72.5034798171.

It can be divided in two parts, 3811 and 33, that added together give a square (3844 = 62²).

The spelling of 381133 in words is "three hundred eighty-one thousand, one hundred thirty-three".