184320009 has 32 divisors (see below), whose sum is σ = 278328960. Its totient is φ = 120536064.

The previous prime is 184319959. The next prime is 184320011. The reversal of 184320009 is 900023481.

It is not a de Polignac number, because 184320009 - 2¹² = 184315913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (184320029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521977 + ... + 522329.

It is an arithmetic number, because the mean of its divisors is an integer number (8697780).

Almost surely, 2^184320009 is an apocalyptic number.

It is an amenable number.

184320009 is a deficient number, since it is larger than the sum of its proper divisors (94008951).

184320009 is a wasteful number, since it uses less digits than its factorization.

184320009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 184320009 is about 13576.4505302380. The cubic root of 184320009 is about 569.1029379812.

The spelling of 184320009 in words is "one hundred eighty-four million, three hundred twenty thousand, nine".