205112270 has 16 divisors (see below), whose sum is σ = 402766128. Its totient is φ = 74586240.

The previous prime is 205112267. The next prime is 205112291. The reversal of 205112270 is 72211502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932219 + ... + 932438.

It is an arithmetic number, because the mean of its divisors is an integer number (25172883).

Almost surely, 2^205112270 is an apocalyptic number.

205112270 is a deficient number, since it is larger than the sum of its proper divisors (197653858).

205112270 is a wasteful number, since it uses less digits than its factorization.

205112270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864675.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 205112270 is about 14321.7411650958. The cubic root of 205112270 is about 589.7444742386.

Adding to 205112270 its reverse (72211502), we get a palindrome (277323772).

The spelling of 205112270 in words is "two hundred five million, one hundred twelve thousand, two hundred seventy".