204135430054 has 8 divisors (see below), whose sum is σ = 306374309280. Its totient is φ = 102010660296.

The previous prime is 204135430049. The next prime is 204135430067. The reversal of 204135430054 is 450034531402.

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

It is a junction number, because it is equal to n+sod(n) for n = 204135429998 and 204135430025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28522894 + ... + 28530049.

It is an arithmetic number, because the mean of its divisors is an integer number (38296788660).

Almost surely, 2^204135430054 is an apocalyptic number.

204135430054 is a deficient number, since it is larger than the sum of its proper divisors (102238879226).

204135430054 is a wasteful number, since it uses less digits than its factorization.

204135430054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57054734.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 204135430054 its reverse (450034531402), we get a palindrome (654169961456).

The spelling of 204135430054 in words is "two hundred four billion, one hundred thirty-five million, four hundred thirty thousand, fifty-four".