204312512 has 28 divisors (see below), whose sum is σ = 415326576. Its totient is φ = 99663360.

The previous prime is 204312497. The next prime is 204312527. The reversal of 204312512 is 215213402.

It is an interprime number because it is at equal distance from previous prime (204312497) and next prime (204312527).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 36308 + ... + 41555.

It is an arithmetic number, because the mean of its divisors is an integer number (14833092).

Almost surely, 2^204312512 is an apocalyptic number.

It is an amenable number.

204312512 is an abundant number, since it is smaller than the sum of its proper divisors (211014064).

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

204312512 is an equidigital number, since it uses as much as digits as its factorization.

204312512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77916 (or 77906 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 204312512 is about 14293.7927786854. The cubic root of 204312512 is about 588.9769804112.

Adding to 204312512 its reverse (215213402), we get a palindrome (419525914).

The spelling of 204312512 in words is "two hundred four million, three hundred twelve thousand, five hundred twelve".