205345012 has 24 divisors (see below), whose sum is σ = 375480000. Its totient is φ = 98077056.

The previous prime is 205345009. The next prime is 205345013. The reversal of 205345012 is 210543502.

205345012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205345013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136239 + ... + 137737.

It is an arithmetic number, because the mean of its divisors is an integer number (15645000).

Almost surely, 2^205345012 is an apocalyptic number.

It is an amenable number.

205345012 is a deficient number, since it is larger than the sum of its proper divisors (170134988).

205345012 is a wasteful number, since it uses less digits than its factorization.

205345012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 205345012 is about 14329.8643399022. The cubic root of 205345012 is about 589.9674520013.

Adding to 205345012 its reverse (210543502), we get a palindrome (415888514).

The spelling of 205345012 in words is "two hundred five million, three hundred forty-five thousand, twelve".