204531124 has 48 divisors (see below), whose sum is σ = 441141120. Its totient is φ = 81008640.

The previous prime is 204531077. The next prime is 204531127. The reversal of 204531124 is 421135402.

It is a junction number, because it is equal to n+sod(n) for n = 204531095 and 204531104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204531127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17124 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (9190440).

Almost surely, 2^204531124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204531124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220570560).

204531124 is an abundant number, since it is smaller than the sum of its proper divisors (236609996).

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

204531124 is a wasteful number, since it uses less digits than its factorization.

204531124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448 (or 9446 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 204531124 is about 14301.4378298128. The cubic root of 204531124 is about 589.1869716948.

Adding to 204531124 its reverse (421135402), we get a palindrome (625666526).

The spelling of 204531124 in words is "two hundred four million, five hundred thirty-one thousand, one hundred twenty-four".