165580141

165580141 is a natural number in base-10. It sits between 165580140 and 165580142 and is written with the digits 1, 6, 5, 5, 8, 0, 1, 4, 1.

Numerical properties include that it is an odd integer. The sum of its digits is 31, which means the number is congruent to 1 modulo 3 and 4 modulo 9. It is not divisible by 2, 3, or 5, as indicated by its last digit and digit sum.

The number is not a perfect square. The nearest integer squares are 12,867 squared, which equals 165,559,689, and 12,868 squared, which equals 165,585,424, placing 165,580,141 between them.

As a nine-digit decimal number, 165580141 has no widely noted mathematical significance or cultural association. It is primarily of interest as a test value in arithmetic and computational contexts, used to illustrate properties of digits, modular arithmetic, and range-based comparisons in descriptive or educational materials.