206157206 has 4 divisors (see below), whose sum is σ = 309235812. Its totient is φ = 103078602.

The previous prime is 206157167. The next prime is 206157253. The reversal of 206157206 is 602751602.

206157206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51539300 + ... + 51539303.

It is an arithmetic number, because the mean of its divisors is an integer number (77308953).

Almost surely, 2^206157206 is an apocalyptic number.

206157206 is a deficient number, since it is larger than the sum of its proper divisors (103078606).

206157206 is a wasteful number, since it uses less digits than its factorization.

206157206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103078605.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 206157206 is about 14358.1755804838. The cubic root of 206157206 is about 590.7442546760.

The spelling of 206157206 in words is "two hundred six million, one hundred fifty-seven thousand, two hundred six".