180728573 has 2 divisors, whose sum is σ = 180728574. Its totient is φ = 180728572.

The previous prime is 180728567. The next prime is 180728579. The reversal of 180728573 is 375827081.

It is a balanced prime because it is at equal distance from previous prime (180728567) and next prime (180728579).

It can be written as a sum of positive squares in only one way, i.e., 180687364 + 41209 = 13442^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 180728573 - 2¹² = 180724477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180728573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180728579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90364286 + 90364287.

It is an arithmetic number, because the mean of its divisors is an integer number (90364287).

Almost surely, 2^180728573 is an apocalyptic number.

It is an amenable number.

180728573 is a deficient number, since it is larger than the sum of its proper divisors (1).

180728573 is an equidigital number, since it uses as much as digits as its factorization.

180728573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 180728573 is about 13443.5327574265. The cubic root of 180728573 is about 565.3823845299.

The spelling of 180728573 in words is "one hundred eighty million, seven hundred twenty-eight thousand, five hundred seventy-three".