105112689 has 16 divisors (see below), whose sum is σ = 155485440. Its totient is φ = 62623760.

The previous prime is 105112613. The next prime is 105112703. The reversal of 105112689 is 986211501.

It is a cyclic number.

It is not a de Polignac number, because 105112689 - 2⁸ = 105112433 is a prime.

It is a super-2 number, since 2×105112689² = 22097354777621442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (105110689) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25047 + ... + 28940.

It is an arithmetic number, because the mean of its divisors is an integer number (9717840).

Almost surely, 2^105112689 is an apocalyptic number.

It is an amenable number.

105112689 is a deficient number, since it is larger than the sum of its proper divisors (50372751).

105112689 is a wasteful number, since it uses less digits than its factorization.

105112689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54060.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 105112689 is about 10252.4479515870. The cubic root of 105112689 is about 471.9381098230.

The spelling of 105112689 in words is "one hundred five million, one hundred twelve thousand, six hundred eighty-nine".