204631126 has 16 divisors (see below), whose sum is σ = 351760896. Its totient is φ = 87457896.

The previous prime is 204631111. The next prime is 204631129. The reversal of 204631126 is 621136402.

It is a self number, because there is not a number n which added to its sum of digits gives 204631126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204631129) 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 7 ways as a sum of consecutive naturals, for example, 14776 + ... + 25051.

It is an arithmetic number, because the mean of its divisors is an integer number (21985056).

Almost surely, 2^204631126 is an apocalyptic number.

204631126 is a deficient number, since it is larger than the sum of its proper divisors (147129770).

204631126 is a wasteful number, since it uses less digits than its factorization.

204631126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40203.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204631126 is about 14304.9336244528. The cubic root of 204631126 is about 589.2829803517.

Adding to 204631126 its reverse (621136402), we get a palindrome (825767528).

The spelling of 204631126 in words is "two hundred four million, six hundred thirty-one thousand, one hundred twenty-six".