206539030 has 8 divisors (see below), whose sum is σ = 371770272. Its totient is φ = 82615608.

The previous prime is 206538979. The next prime is 206539037. The reversal of 206539030 is 30935602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 206539030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206539037) by changing a digit.

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, 10326942 + ... + 10326961.

It is an arithmetic number, because the mean of its divisors is an integer number (46471284).

Almost surely, 2^206539030 is an apocalyptic number.

206539030 is a deficient number, since it is larger than the sum of its proper divisors (165231242).

206539030 is a wasteful number, since it uses less digits than its factorization.

206539030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20653910.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 206539030 is about 14371.4658264215. The cubic root of 206539030 is about 591.1087357893.

The spelling of 206539030 in words is "two hundred six million, five hundred thirty-nine thousand, thirty".