185682149 has 2 divisors, whose sum is σ = 185682150. Its totient is φ = 185682148.

The previous prime is 185682113. The next prime is 185682163. The reversal of 185682149 is 941286581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175960225 + 9721924 = 13265^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 185682149 - 2²⁰ = 184633573 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185682179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92841074 + 92841075.

It is an arithmetic number, because the mean of its divisors is an integer number (92841075).

Almost surely, 2^185682149 is an apocalyptic number.

It is an amenable number.

185682149 is a deficient number, since it is larger than the sum of its proper divisors (1).

185682149 is an equidigital number, since it uses as much as digits as its factorization.

185682149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 44.

The square root of 185682149 is about 13626.5237313117. The cubic root of 185682149 is about 570.5014045028.

The spelling of 185682149 in words is "one hundred eighty-five million, six hundred eighty-two thousand, one hundred forty-nine".