105321345 has 8 divisors (see below), whose sum is σ = 168514176. Its totient is φ = 56171376.

The previous prime is 105321287. The next prime is 105321367. The reversal of 105321345 is 543123501.

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

It is not a de Polignac number, because 105321345 - 2⁸ = 105321089 is a prime.

It is a super-2 number, since 2×105321345² = 22185171425218050, which contains 22 as substring.

It is an unprimeable number.

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, 3510697 + ... + 3510726.

It is an arithmetic number, because the mean of its divisors is an integer number (21064272).

Almost surely, 2^105321345 is an apocalyptic number.

105321345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105321345 is a deficient number, since it is larger than the sum of its proper divisors (63192831).

105321345 is an equidigital number, since it uses as much as digits as its factorization.

105321345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021431.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 105321345 is about 10262.6188178262. The cubic root of 105321345 is about 472.2501800800.

Adding to 105321345 its reverse (543123501), we get a palindrome (648444846).

The spelling of 105321345 in words is "one hundred five million, three hundred twenty-one thousand, three hundred forty-five".