106381 has 8 divisors (see below), whose sum is σ = 122400. Its totient is φ = 91440.

The previous prime is 106373. The next prime is 106391. The reversal of 106381 is 183601.

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 106381 - 2³ = 106373 is a prime.

It is a super-2 number, since 2×106381² = 22633834322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106321) 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, 46 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (15300).

2¹⁰⁶³⁸¹ is an apocalyptic number.

106381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106381 is a deficient number, since it is larger than the sum of its proper divisors (16019).

106381 is a wasteful number, since it uses less digits than its factorization.

106381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 106381 is about 326.1610031871. The cubic root of 106381 is about 47.3828692984.

Adding to 106381 its reverse (183601), we get a palindrome (289982).

The spelling of 106381 in words is "one hundred six thousand, three hundred eighty-one".