103938109 has 4 divisors (see below), whose sum is σ = 113387040. Its totient is φ = 94489180.

The previous prime is 103938089. The next prime is 103938137. The reversal of 103938109 is 901839301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103938109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103938169) 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, 4724449 + ... + 4724470.

It is an arithmetic number, because the mean of its divisors is an integer number (28346760).

Almost surely, 2^103938109 is an apocalyptic number.

It is an amenable number.

103938109 is a deficient number, since it is larger than the sum of its proper divisors (9448931).

103938109 is an equidigital number, since it uses as much as digits as its factorization.

103938109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448930.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 103938109 is about 10195.0041196657. The cubic root of 103938109 is about 470.1736328438.

The spelling of 103938109 in words is "one hundred three million, nine hundred thirty-eight thousand, one hundred nine".