206715315 has 16 divisors (see below), whose sum is σ = 331252128. Its totient is φ = 110078976.

The previous prime is 206715287. The next prime is 206715343. The reversal of 206715315 is 513517602.

206715315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (206715287) and next prime (206715343).

It is not a de Polignac number, because 206715315 - 2⁸ = 206715059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (20703258).

Almost surely, 2^206715315 is an apocalyptic number.

206715315 is a deficient number, since it is larger than the sum of its proper divisors (124536813).

206715315 is a wasteful number, since it uses less digits than its factorization.

206715315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21158.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 206715315 is about 14377.5976783328. The cubic root of 206715315 is about 591.2768621574.

The spelling of 206715315 in words is "two hundred six million, seven hundred fifteen thousand, three hundred fifteen".