205214065 has 32 divisors (see below), whose sum is σ = 287910144. Its totient is φ = 137514240.

The previous prime is 205214059. The next prime is 205214077. The reversal of 205214065 is 560412502.

205214065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205214065 - 2³ = 205214057 is a prime.

It is a super-2 number, since 2×205214065² = 84225624947648450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 591222 + ... + 591568.

It is an arithmetic number, because the mean of its divisors is an integer number (8997192).

Almost surely, 2^205214065 is an apocalyptic number.

It is an amenable number.

205214065 is a deficient number, since it is larger than the sum of its proper divisors (82696079).

205214065 is a wasteful number, since it uses less digits than its factorization.

205214065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 205214065 is about 14325.2945868488. The cubic root of 205214065 is about 589.8420193704.

Adding to 205214065 its reverse (560412502), we get a palindrome (765626567).

The spelling of 205214065 in words is "two hundred five million, two hundred fourteen thousand, sixty-five".