205112002 has 8 divisors (see below), whose sum is σ = 307846476. Its totient is φ = 102496512.

The previous prime is 205111993. The next prime is 205112003. The reversal of 205112002 is 200211502.

It can be written as a sum of positive squares in 2 ways, for example, as 203319081 + 1792921 = 14259^2 + 1339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (205112003) 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, 25303 + ... + 32410.

Almost surely, 2^205112002 is an apocalyptic number.

205112002 is a deficient number, since it is larger than the sum of its proper divisors (102734474).

205112002 is a wasteful number, since it uses less digits than its factorization.

205112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59492.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 205112002 is about 14321.7318086885. The cubic root of 205112002 is about 589.7442173848.

Adding to 205112002 its reverse (200211502), we get a palindrome (405323504).

The spelling of 205112002 in words is "two hundred five million, one hundred twelve thousand, two".