185424149 has 2 divisors, whose sum is σ = 185424150. Its totient is φ = 185424148.

The previous prime is 185424103. The next prime is 185424163. The reversal of 185424149 is 941424581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127283524 + 58140625 = 11282^2 + 7625^2 .

It is a cyclic number.

It is not a de Polignac number, because 185424149 - 2⁸ = 185423893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185424179) 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, 92712074 + 92712075.

It is an arithmetic number, because the mean of its divisors is an integer number (92712075).

Almost surely, 2^185424149 is an apocalyptic number.

It is an amenable number.

185424149 is a deficient number, since it is larger than the sum of its proper divisors (1).

185424149 is an equidigital number, since it uses as much as digits as its factorization.

185424149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 185424149 is about 13617.0536093532. The cubic root of 185424149 is about 570.2370502687.

The spelling of 185424149 in words is "one hundred eighty-five million, four hundred twenty-four thousand, one hundred forty-nine".