Is 123 a deficient number and what is its deficiency?

Is 123 a deficient number?

Here we will explain and calculate if 123 is a deficient number and its deficiency if applicable.

123 is a deficient number if the sum of its proper divisors is less than 123.

The sum of its proper divisors is calculated as follows: 1 + 3 + 41 = 45.

45 is less than 123. Therefore, 123 is a deficient number.

The deficiency of 123 is 123 minus the sum of its proper divisors. Thus, the deficiency of 123 is 123 - 45 = 78

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