105720112 has 20 divisors (see below), whose sum is σ = 204995560. Its totient is φ = 52818048.

The previous prime is 105720077. The next prime is 105720113. The reversal of 105720112 is 211027501.

It is a super-2 number, since 2×105720112² = 22353484162585088, 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 105720112.

It is not an unprimeable number, because it can be changed into a prime (105720113) 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 3 ways as a sum of consecutive naturals, for example, 31843 + ... + 35005.

It is an arithmetic number, because the mean of its divisors is an integer number (10249778).

Almost surely, 2^105720112 is an apocalyptic number.

It is an amenable number.

105720112 is a deficient number, since it is larger than the sum of its proper divisors (99275448).

105720112 is a wasteful number, since it uses less digits than its factorization.

105720112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5254 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 105720112 is about 10282.0285936191. The cubic root of 105720112 is about 472.8454396544.

Adding to 105720112 its reverse (211027501), we get a palindrome (316747613).

The spelling of 105720112 in words is "one hundred five million, seven hundred twenty thousand, one hundred twelve".