105521717 has 8 divisors (see below), whose sum is σ = 122396736. Its totient is φ = 89096832.

The previous prime is 105521707. The next prime is 105521761. The reversal of 105521717 is 717125501.

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 105521717 - 2⁶ = 105521653 is a prime.

It is a super-2 number, since 2×105521717² = 22269665517256178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105521717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105521707) 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, 112028 + ... + 112965.

It is an arithmetic number, because the mean of its divisors is an integer number (15299592).

Almost surely, 2^105521717 is an apocalyptic number.

It is an amenable number.

105521717 is a deficient number, since it is larger than the sum of its proper divisors (16875019).

105521717 is an equidigital number, since it uses as much as digits as its factorization.

105521717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225067.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 105521717 is about 10272.3764047079. The cubic root of 105521717 is about 472.5494729046.

The spelling of 105521717 in words is "one hundred five million, five hundred twenty-one thousand, seven hundred seventeen".