185193362021 has 2 divisors, whose sum is σ = 185193362022. Its totient is φ = 185193362020.

The previous prime is 185193362017. The next prime is 185193362027. The reversal of 185193362021 is 120263391581.

185193362021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110330929921 + 74862432100 = 332161^2 + 273610^2 .

It is an emirp because it is prime and its reverse (120263391581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 185193362021 - 2² = 185193362017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 185193362021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185193362027) 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, 92596681010 + 92596681011.

It is an arithmetic number, because the mean of its divisors is an integer number (92596681011).

Almost surely, 2^185193362021 is an apocalyptic number.

It is an amenable number.

185193362021 is a deficient number, since it is larger than the sum of its proper divisors (1).

185193362021 is an equidigital number, since it uses as much as digits as its factorization.

185193362021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 185193362021 in words is "one hundred eighty-five billion, one hundred ninety-three million, three hundred sixty-two thousand, twenty-one".