204155212 has 12 divisors (see below), whose sum is σ = 368796736. Its totient is φ = 98784720.

The previous prime is 204155201. The next prime is 204155219. The reversal of 204155212 is 212551402.

It is not an unprimeable number, because it can be changed into a prime (204155219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823083 + ... + 823330.

Almost surely, 2^204155212 is an apocalyptic number.

It is an amenable number.

204155212 is a deficient number, since it is larger than the sum of its proper divisors (164641524).

204155212 is a wasteful number, since it uses less digits than its factorization.

204155212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646448 (or 1646446 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 204155212 is about 14288.2893307771. The cubic root of 204155212 is about 588.8257906736.

The spelling of 204155212 in words is "two hundred four million, one hundred fifty-five thousand, two hundred twelve".