105111444 has 12 divisors (see below), whose sum is σ = 245260064. Its totient is φ = 35037144.

The previous prime is 105111443. The next prime is 105111463. The reversal of 105111444 is 444111501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105111444² = 22096831319530272, 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 105111444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105111443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379632 + ... + 4379655.

Almost surely, 2^105111444 is an apocalyptic number.

It is an amenable number.

105111444 is an abundant number, since it is smaller than the sum of its proper divisors (140148620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105111444 is a wasteful number, since it uses less digits than its factorization.

105111444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759294 (or 8759292 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 105111444 is about 10252.3872342006. The cubic root of 105111444 is about 471.9362465361.

Adding to 105111444 its reverse (444111501), we get a palindrome (549222945).

The spelling of 105111444 in words is "one hundred five million, one hundred eleven thousand, four hundred forty-four".