204312104 has 8 divisors (see below), whose sum is σ = 383085210. Its totient is φ = 102156048.

The previous prime is 204312089. The next prime is 204312109. The reversal of 204312104 is 401213402.

It can be written as a sum of positive squares in only one way, i.e., 179292100 + 25020004 = 13390^2 + 5002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (204312109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12769499 + ... + 12769514.

Almost surely, 2^204312104 is an apocalyptic number.

It is an amenable number.

204312104 is a deficient number, since it is larger than the sum of its proper divisors (178773106).

204312104 is a wasteful number, since it uses less digits than its factorization.

204312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25539019 (or 25539015 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204312104 is about 14293.7785067490. The cubic root of 204312104 is about 588.9765883602.

Adding to 204312104 its reverse (401213402), we get a palindrome (605525506).

The spelling of 204312104 in words is "two hundred four million, three hundred twelve thousand, one hundred four".