103828109 has 12 divisors (see below), whose sum is σ = 131760288. Its totient is φ = 80904600.

The previous prime is 103828099. The next prime is 103828157. The reversal of 103828109 is 901828301.

It is not a de Polignac number, because 103828109 - 2⁴ = 103828093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103828009) 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 11 ways as a sum of consecutive naturals, for example, 95777 + ... + 96854.

It is an arithmetic number, because the mean of its divisors is an integer number (10980024).

Almost surely, 2^103828109 is an apocalyptic number.

It is an amenable number.

103828109 is a deficient number, since it is larger than the sum of its proper divisors (27932179).

103828109 is a wasteful number, since it uses less digits than its factorization.

103828109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192656 (or 192649 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 103828109 is about 10189.6078923578. The cubic root of 103828109 is about 470.0077092443.

The spelling of 103828109 in words is "one hundred three million, eight hundred twenty-eight thousand, one hundred nine".