381117 has 8 divisors (see below), whose sum is σ = 554400. Its totient is φ = 230960.

The previous prime is 381103. The next prime is 381167. The reversal of 381117 is 711183.

381117 is digitally balanced in base 7, 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 381117 - 2¹² = 377021 is a prime.

381117 is strictly pandigital in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 381093 and 381102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5742 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2³⁸¹¹¹⁷ is an apocalyptic number.

It is an amenable number.

381117 is a deficient number, since it is larger than the sum of its proper divisors (173283).

381117 is a wasteful number, since it uses less digits than its factorization.

381117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11563.

The product of its digits is 168, while the sum is 21.

The square root of 381117 is about 617.3467421150. The cubic root of 381117 is about 72.5024652352.

It can be divided in two parts, 3811 and 17, that added together give a triangular number (3828 = T₈₇).

The spelling of 381117 in words is "three hundred eighty-one thousand, one hundred seventeen".