206713265 has 32 divisors (see below), whose sum is σ = 280122624. Its totient is φ = 145117440.

The previous prime is 206713261. The next prime is 206713271. The reversal of 206713265 is 562317602.

It is not a de Polignac number, because 206713265 - 2² = 206713261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206713261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319172 + ... + 319818.

It is an arithmetic number, because the mean of its divisors is an integer number (8753832).

Almost surely, 2^206713265 is an apocalyptic number.

It is an amenable number.

206713265 is a deficient number, since it is larger than the sum of its proper divisors (73409359).

206713265 is a wasteful number, since it uses less digits than its factorization.

206713265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 206713265 is about 14377.5263866911. The cubic root of 206713265 is about 591.2749075827.

The spelling of 206713265 in words is "two hundred six million, seven hundred thirteen thousand, two hundred sixty-five".