206145506 has 8 divisors (see below), whose sum is σ = 353392320. Its totient is φ = 88348068.

The previous prime is 206145491. The next prime is 206145521. The reversal of 206145506 is 605541602.

206145506 is digitally balanced in base 3, 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 (206145491) and next prime (206145521).

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

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, 7362326 + ... + 7362353.

It is an arithmetic number, because the mean of its divisors is an integer number (44174040).

Almost surely, 2^206145506 is an apocalyptic number.

206145506 is a deficient number, since it is larger than the sum of its proper divisors (147246814).

206145506 is a wasteful number, since it uses less digits than its factorization.

206145506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14724688.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 206145506 is about 14357.7681413234. The cubic root of 206145506 is about 590.7330789998.

The spelling of 206145506 in words is "two hundred six million, one hundred forty-five thousand, five hundred six".