204021472134 has 8 divisors (see below), whose sum is σ = 408042944280. Its totient is φ = 68007157376.

The previous prime is 204021472129. The next prime is 204021472163. The reversal of 204021472134 is 431274120402.

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

204021472134 is an admirable number.

It is a super-2 number, since 2×204021472134² (a number of 23 digits) contains 22 as substring.

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, 17001789339 + ... + 17001789350.

It is an arithmetic number, because the mean of its divisors is an integer number (51005368035).

Almost surely, 2^204021472134 is an apocalyptic number.

204021472134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204021472134 is a wasteful number, since it uses less digits than its factorization.

204021472134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34003578694.

The product of its (nonzero) digits is 10752, while the sum is 30.

Adding to 204021472134 its reverse (431274120402), we get a palindrome (635295592536).

The spelling of 204021472134 in words is "two hundred four billion, twenty-one million, four hundred seventy-two thousand, one hundred thirty-four".