204134217 has 32 divisors (see below), whose sum is σ = 325562112. Its totient is φ = 111331584.

The previous prime is 204134197. The next prime is 204134237. The reversal of 204134217 is 712431402.

It is a happy number.

204134217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204134197) and next prime (204134237).

It is not a de Polignac number, because 204134217 - 2¹⁶ = 204068681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204134237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38703 + ... + 43659.

It is an arithmetic number, because the mean of its divisors is an integer number (10173816).

Almost surely, 2^204134217 is an apocalyptic number.

It is an amenable number.

204134217 is a deficient number, since it is larger than the sum of its proper divisors (121427895).

204134217 is a wasteful number, since it uses less digits than its factorization.

204134217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 204134217 is about 14287.5546193182. The cubic root of 204134217 is about 588.8056053431.

Adding to 204134217 its reverse (712431402), we get a palindrome (916565619).

It can be divided in two parts, 204 and 134217, that added together give a triangular number (134421 = T₅₁₈).

The spelling of 204134217 in words is "two hundred four million, one hundred thirty-four thousand, two hundred seventeen".