204311534 has 8 divisors (see below), whose sum is σ = 350248368. Its totient is φ = 87562080.

The previous prime is 204311431. The next prime is 204311539. The reversal of 204311534 is 435113402.

204311534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204311539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7296827 + ... + 7296854.

It is an arithmetic number, because the mean of its divisors is an integer number (43781046).

Almost surely, 2^204311534 is an apocalyptic number.

204311534 is a deficient number, since it is larger than the sum of its proper divisors (145936834).

204311534 is a wasteful number, since it uses less digits than its factorization.

204311534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593690.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204311534 is about 14293.7585679904. The cubic root of 204311534 is about 588.9760406410.

Adding to 204311534 its reverse (435113402), we get a palindrome (639424936).

The spelling of 204311534 in words is "two hundred four million, three hundred eleven thousand, five hundred thirty-four".