185482109 has 2 divisors, whose sum is σ = 185482110. Its totient is φ = 185482108.

The previous prime is 185482093. The next prime is 185482111. The reversal of 185482109 is 901284581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179479609 + 6002500 = 13397^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 185482109 - 2⁴ = 185482093 is a prime.

It is a super-2 number, since 2×185482109² = 68807225518175762, which contains 22 as substring.

Together with 185482111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185482309) 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, 92741054 + 92741055.

It is an arithmetic number, because the mean of its divisors is an integer number (92741055).

Almost surely, 2^185482109 is an apocalyptic number.

It is an amenable number.

185482109 is a deficient number, since it is larger than the sum of its proper divisors (1).

185482109 is an equidigital number, since it uses as much as digits as its factorization.

185482109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 185482109 is about 13619.1816567663. The cubic root of 185482109 is about 570.2964591007.

The spelling of 185482109 in words is "one hundred eighty-five million, four hundred eighty-two thousand, one hundred nine".