204555141 has 12 divisors (see below), whose sum is σ = 337678432. Its totient is φ = 116888616.

The previous prime is 204555133. The next prime is 204555149. The reversal of 204555141 is 141555402.

It is an interprime number because it is at equal distance from previous prime (204555133) and next prime (204555149).

It is not a de Polignac number, because 204555141 - 2³ = 204555133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204555149) 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 11 ways as a sum of consecutive naturals, for example, 1623391 + ... + 1623516.

Almost surely, 2^204555141 is an apocalyptic number.

204555141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204555141 is a deficient number, since it is larger than the sum of its proper divisors (133123291).

204555141 is a wasteful number, since it uses less digits than its factorization.

204555141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246920 (or 3246917 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 204555141 is about 14302.2774759826. The cubic root of 204555141 is about 589.2100324876.

The spelling of 204555141 in words is "two hundred four million, five hundred fifty-five thousand, one hundred forty-one".