180885941 has 2 divisors, whose sum is σ = 180885942. Its totient is φ = 180885940.

The previous prime is 180885937. The next prime is 180885949. The reversal of 180885941 is 149588081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152423716 + 28462225 = 12346^2 + 5335^2 .

It is an emirp because it is prime and its reverse (149588081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180885941 - 2² = 180885937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 180885892 and 180885901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180885949) 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, 90442970 + 90442971.

It is an arithmetic number, because the mean of its divisors is an integer number (90442971).

Almost surely, 2^180885941 is an apocalyptic number.

It is an amenable number.

180885941 is a deficient number, since it is larger than the sum of its proper divisors (1).

180885941 is an equidigital number, since it uses as much as digits as its factorization.

180885941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 180885941 is about 13449.3844097044. The cubic root of 180885941 is about 565.5464376952.

The spelling of 180885941 in words is "one hundred eighty million, eight hundred eighty-five thousand, nine hundred forty-one".