204019149 has 4 divisors (see below), whose sum is σ = 272025536. Its totient is φ = 136012764.

The previous prime is 204019117. The next prime is 204019181. The reversal of 204019149 is 941910402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (204019117) and next prime (204019181).

It is not a de Polignac number, because 204019149 - 2⁵ = 204019117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204069149) 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 in 3 ways as a sum of consecutive naturals, for example, 34003189 + ... + 34003194.

It is an arithmetic number, because the mean of its divisors is an integer number (68006384).

Almost surely, 2^204019149 is an apocalyptic number.

It is an amenable number.

204019149 is a deficient number, since it is larger than the sum of its proper divisors (68006387).

204019149 is an equidigital number, since it uses as much as digits as its factorization.

204019149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68006386.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 204019149 is about 14283.5271904386. The cubic root of 204019149 is about 588.6949503390.

The spelling of 204019149 in words is "two hundred four million, nineteen thousand, one hundred forty-nine".