180385853 has 2 divisors, whose sum is σ = 180385854. Its totient is φ = 180385852.

The previous prime is 180385813. The next prime is 180385897. The reversal of 180385853 is 358583081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173106649 + 7279204 = 13157^2 + 2698^2 .

It is a cyclic number.

It is not a de Polignac number, because 180385853 - 2⁶ = 180385789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180385853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180385813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90192926 + 90192927.

It is an arithmetic number, because the mean of its divisors is an integer number (90192927).

Almost surely, 2^180385853 is an apocalyptic number.

It is an amenable number.

180385853 is a deficient number, since it is larger than the sum of its proper divisors (1).

180385853 is an equidigital number, since it uses as much as digits as its factorization.

180385853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 180385853 is about 13430.7800592520. The cubic root of 180385853 is about 565.0247755862.

The spelling of 180385853 in words is "one hundred eighty million, three hundred eighty-five thousand, eight hundred fifty-three".