204156312 has 16 divisors (see below), whose sum is σ = 510390840. Its totient is φ = 68052096.

The previous prime is 204156307. The next prime is 204156319. The reversal of 204156312 is 213651402.

204156312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8506513 = 204156312 / (2 + 0 + 4 + 1 + 5 + 6 + 3 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204156319) 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 3 ways as a sum of consecutive naturals, for example, 4253233 + ... + 4253280.

Almost surely, 2^204156312 is an apocalyptic number.

It is an amenable number.

204156312 is an abundant number, since it is smaller than the sum of its proper divisors (306234528).

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

204156312 is a wasteful number, since it uses less digits than its factorization.

204156312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506522 (or 8506518 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 204156312 is about 14288.3278237868. The cubic root of 204156312 is about 588.8268482141.

The spelling of 204156312 in words is "two hundred four million, one hundred fifty-six thousand, three hundred twelve".