Is 1157 a deficient number and what is its deficiency?

Is 1157 a deficient number?

Here we will explain and calculate if 1157 is a deficient number and its deficiency if applicable.

1157 is a deficient number if the sum of its proper divisors is less than 1157.

The sum of its proper divisors is calculated as follows: 1 + 13 + 89 = 103.

103 is less than 1157. Therefore, 1157 is a deficient number.

The deficiency of 1157 is 1157 minus the sum of its proper divisors. Thus, the deficiency of 1157 is 1157 - 103 = 1054

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