105716945 has 8 divisors (see below), whose sum is σ = 126961344. Its totient is φ = 84506224.

The previous prime is 105716917. The next prime is 105716951. The reversal of 105716945 is 549617501.

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 105716945 - 2¹⁸ = 105454801 is a prime.

It is a super-2 number, since 2×105716945² = 22352144920266050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105716899 and 105716908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899 + ... + 14568.

It is an arithmetic number, because the mean of its divisors is an integer number (15870168).

Almost surely, 2^105716945 is an apocalyptic number.

It is an amenable number.

105716945 is a deficient number, since it is larger than the sum of its proper divisors (21244399).

105716945 is a wasteful number, since it uses less digits than its factorization.

105716945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16839.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 105716945 is about 10281.8745858914. The cubic root of 105716945 is about 472.8407180159.

The spelling of 105716945 in words is "one hundred five million, seven hundred sixteen thousand, nine hundred forty-five".