105381321 has 8 divisors (see below), whose sum is σ = 141519840. Its totient is φ = 69748512.

The previous prime is 105381319. The next prime is 105381323. The reversal of 105381321 is 123183501.

It is an interprime number because it is at equal distance from previous prime (105381319) and next prime (105381323).

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

It is not a de Polignac number, because 105381321 - 2¹ = 105381319 is a prime.

It is a super-2 number, since 2×105381321² = 22210445631410082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105381291 and 105381300.

It is not an unprimeable number, because it can be changed into a prime (105381323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125940 + ... + 126773.

It is an arithmetic number, because the mean of its divisors is an integer number (17689980).

Almost surely, 2^105381321 is an apocalyptic number.

It is an amenable number.

105381321 is a deficient number, since it is larger than the sum of its proper divisors (36138519).

105381321 is a wasteful number, since it uses less digits than its factorization.

105381321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252855.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 105381321 is about 10265.5404631222. The cubic root of 105381321 is about 472.3398051606.

The spelling of 105381321 in words is "one hundred five million, three hundred eighty-one thousand, three hundred twenty-one".