204134451 has 16 divisors (see below), whose sum is σ = 282005760. Its totient is φ = 131191200.

The previous prime is 204134401. The next prime is 204134467. The reversal of 204134451 is 154431402.

It is not a de Polignac number, because 204134451 - 2¹¹ = 204132403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204134401) 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, 70176 + ... + 73026.

It is an arithmetic number, because the mean of its divisors is an integer number (17625360).

Almost surely, 2^204134451 is an apocalyptic number.

204134451 is a deficient number, since it is larger than the sum of its proper divisors (77871309).

204134451 is a wasteful number, since it uses less digits than its factorization.

204134451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706.

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

The square root of 204134451 is about 14287.5628082609. The cubic root of 204134451 is about 588.8058303265.

Adding to 204134451 its reverse (154431402), we get a palindrome (358565853).

The spelling of 204134451 in words is "two hundred four million, one hundred thirty-four thousand, four hundred fifty-one".