205045042 has 8 divisors (see below), whose sum is σ = 307742832. Its totient is φ = 102464100.

The previous prime is 205045039. The next prime is 205045073. The reversal of 205045042 is 240540502.

205045042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24684 + ... + 31927.

It is an arithmetic number, because the mean of its divisors is an integer number (38467854).

Almost surely, 2^205045042 is an apocalyptic number.

205045042 is a deficient number, since it is larger than the sum of its proper divisors (102697790).

205045042 is a wasteful number, since it uses less digits than its factorization.

205045042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58424.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 205045042 is about 14319.3939117548. The cubic root of 205045042 is about 589.6800352626.

Adding to 205045042 its reverse (240540502), we get a palindrome (445585544).

The spelling of 205045042 in words is "two hundred five million, forty-five thousand, forty-two".