204219135 has 24 divisors (see below), whose sum is σ = 354354000. Its totient is φ = 108801792.

The previous prime is 204219121. The next prime is 204219143. The reversal of 204219135 is 531912402.

It is not a de Polignac number, because 204219135 - 2⁸ = 204218879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204219099 and 204219108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56616 + ... + 60114.

It is an arithmetic number, because the mean of its divisors is an integer number (14764750).

Almost surely, 2^204219135 is an apocalyptic number.

204219135 is a deficient number, since it is larger than the sum of its proper divisors (150134865).

204219135 is a wasteful number, since it uses less digits than its factorization.

204219135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807 (or 4804 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 204219135 is about 14290.5260574970. The cubic root of 204219135 is about 588.8872399714.

The spelling of 204219135 in words is "two hundred four million, two hundred nineteen thousand, one hundred thirty-five".