Is 1245 a deficient number and what is its deficiency?

Is 1245 a deficient number?

Here we will explain and calculate if 1245 is a deficient number and its deficiency if applicable.

1245 is a deficient number if the sum of its proper divisors is less than 1245.

The sum of its proper divisors is calculated as follows: 1 + 3 + 5 + 15 + 83 + 249 + 415 = 771.

771 is less than 1245. Therefore, 1245 is a deficient number.

The deficiency of 1245 is 1245 minus the sum of its proper divisors. Thus, the deficiency of 1245 is 1245 - 771 = 474

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