204522126 has 16 divisors (see below), whose sum is σ = 413973504. Its totient is φ = 67352504.

The previous prime is 204522113. The next prime is 204522139. The reversal of 204522126 is 621225402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204522113) and next prime (204522139).

It is a junction number, because it is equal to n+sod(n) for n = 204522096 and 204522105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204846 + ... + 205841.

It is an arithmetic number, because the mean of its divisors is an integer number (25873344).

Almost surely, 2^204522126 is an apocalyptic number.

204522126 is an abundant number, since it is smaller than the sum of its proper divisors (209451378).

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

204522126 is a wasteful number, since it uses less digits than its factorization.

204522126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410775.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 204522126 is about 14301.1232425988. The cubic root of 204522126 is about 589.1783314741.

Adding to 204522126 its reverse (621225402), we get a palindrome (825747528).

It can be divided in two parts, 20452 and 2126, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 204522126 in words is "two hundred four million, five hundred twenty-two thousand, one hundred twenty-six".