103910805 has 12 divisors (see below), whose sum is σ = 180112140. Its totient is φ = 55419072.

The previous prime is 103910773. The next prime is 103910819. The reversal of 103910805 is 508019301.

It can be written as a sum of positive squares in 2 ways, for example, as 13242321 + 90668484 = 3639^2 + 9522^2 .

It is not a de Polignac number, because 103910805 - 2⁵ = 103910773 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1154520 + ... + 1154609.

It is an arithmetic number, because the mean of its divisors is an integer number (15009345).

Almost surely, 2^103910805 is an apocalyptic number.

103910805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103910805 is a deficient number, since it is larger than the sum of its proper divisors (76201335).

103910805 is a wasteful number, since it uses less digits than its factorization.

103910805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309140 (or 2309137 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 103910805 is about 10193.6649444643. The cubic root of 103910805 is about 470.1324585165.

The spelling of 103910805 in words is "one hundred three million, nine hundred ten thousand, eight hundred five".