128180141 has 2 divisors, whose sum is σ = 128180142. Its totient is φ = 128180140.

The previous prime is 128180123. The next prime is 128180147. The reversal of 128180141 is 141081821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123432100 + 4748041 = 11110^2 + 2179^2 .

It is a cyclic number.

It is not a de Polignac number, because 128180141 - 2¹⁴ = 128163757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128180141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128180147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64090070 + 64090071.

It is an arithmetic number, because the mean of its divisors is an integer number (64090071).

Almost surely, 2^128180141 is an apocalyptic number.

It is an amenable number.

128180141 is a deficient number, since it is larger than the sum of its proper divisors (1).

128180141 is an equidigital number, since it uses as much as digits as its factorization.

128180141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 128180141 is about 11321.6668825752. Note that the first 3 decimals coincide. The cubic root of 128180141 is about 504.2047293835.

The spelling of 128180141 in words is "one hundred twenty-eight million, one hundred eighty thousand, one hundred forty-one".