105100028 has 12 divisors (see below), whose sum is σ = 200645592. Its totient is φ = 47772720.

The previous prime is 105099997. The next prime is 105100043. The reversal of 105100028 is 820001501.

It is a super-2 number, since 2×105100028² = 22092031771201568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105099979 and 105100015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194275 + ... + 1194362.

It is an arithmetic number, because the mean of its divisors is an integer number (16720466).

Almost surely, 2^105100028 is an apocalyptic number.

It is an amenable number.

105100028 is a deficient number, since it is larger than the sum of its proper divisors (95545564).

105100028 is a wasteful number, since it uses less digits than its factorization.

105100028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388652 (or 2388650 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 105100028 is about 10251.8304707013. The cubic root of 105100028 is about 471.9191604827.

Adding to 105100028 its reverse (820001501), we get a palindrome (925101529).

The spelling of 105100028 in words is "one hundred five million, one hundred thousand, twenty-eight".