180868057 has 2 divisors, whose sum is σ = 180868058. Its totient is φ = 180868056.

The previous prime is 180868013. The next prime is 180868069. The reversal of 180868057 is 750868081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176783616 + 4084441 = 13296^2 + 2021^2 .

It is a cyclic number.

It is not a de Polignac number, because 180868057 - 2¹⁵ = 180835289 is a prime.

It is not a weakly prime, because it can be changed into another prime (180868007) 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, 90434028 + 90434029.

It is an arithmetic number, because the mean of its divisors is an integer number (90434029).

Almost surely, 2^180868057 is an apocalyptic number.

It is an amenable number.

180868057 is a deficient number, since it is larger than the sum of its proper divisors (1).

180868057 is an equidigital number, since it uses as much as digits as its factorization.

180868057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 180868057 is about 13448.7195301263. The cubic root of 180868057 is about 565.5277987566.

The spelling of 180868057 in words is "one hundred eighty million, eight hundred sixty-eight thousand, fifty-seven".