Is 1159 a deficient number and what is its deficiency?

Is 1159 a deficient number?

Here we will explain and calculate if 1159 is a deficient number and its deficiency if applicable.

1159 is a deficient number if the sum of its proper divisors is less than 1159.

The sum of its proper divisors is calculated as follows: 1 + 19 + 61 = 81.

81 is less than 1159. Therefore, 1159 is a deficient number.

The deficiency of 1159 is 1159 minus the sum of its proper divisors. Thus, the deficiency of 1159 is 1159 - 81 = 1078

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