204445149 has 8 divisors (see below), whose sum is σ = 286940640. Its totient is φ = 129123216.

The previous prime is 204445133. The next prime is 204445169. The reversal of 204445149 is 941544402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204445149 - 2⁴ = 204445133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204445169) 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 in 7 ways as a sum of consecutive naturals, for example, 1793322 + ... + 1793435.

It is an arithmetic number, because the mean of its divisors is an integer number (35867580).

Almost surely, 2^204445149 is an apocalyptic number.

It is an amenable number.

204445149 is a deficient number, since it is larger than the sum of its proper divisors (82495491).

204445149 is a wasteful number, since it uses less digits than its factorization.

204445149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586779.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 204445149 is about 14298.4316972177. The cubic root of 204445149 is about 589.1044048817.

The spelling of 204445149 in words is "two hundred four million, four hundred forty-five thousand, one hundred forty-nine".