206313715 has 4 divisors (see below), whose sum is σ = 247576464. Its totient is φ = 165050968.

The previous prime is 206313697. The next prime is 206313721. The reversal of 206313715 is 517313602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206313715 - 2⁹ = 206313203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20631367 + ... + 20631376.

It is an arithmetic number, because the mean of its divisors is an integer number (61894116).

Almost surely, 2^206313715 is an apocalyptic number.

206313715 is a deficient number, since it is larger than the sum of its proper divisors (41262749).

206313715 is an equidigital number, since it uses as much as digits as its factorization.

206313715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41262748.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 206313715 is about 14363.6247166236. The cubic root of 206313715 is about 590.8937092392.

The spelling of 206313715 in words is "two hundred six million, three hundred thirteen thousand, seven hundred fifteen".