206065351 has 4 divisors (see below), whose sum is σ = 208105704. Its totient is φ = 204025000.

The previous prime is 206065309. The next prime is 206065357. The reversal of 206065351 is 153560602.

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 206065351 - 2²¹ = 203968199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206065357) 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, 1020025 + ... + 1020226.

It is an arithmetic number, because the mean of its divisors is an integer number (52026426).

Almost surely, 2^206065351 is an apocalyptic number.

206065351 is a deficient number, since it is larger than the sum of its proper divisors (2040353).

206065351 is a wasteful number, since it uses less digits than its factorization.

206065351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040352.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 206065351 is about 14354.9765238401. The cubic root of 206065351 is about 590.6565046920.

The spelling of 206065351 in words is "two hundred six million, sixty-five thousand, three hundred fifty-one".