206072651 has 4 divisors (see below), whose sum is σ = 216918600. Its totient is φ = 195226704.

The previous prime is 206072609. The next prime is 206072653. The reversal of 206072651 is 156270602.

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 206072651 - 2¹⁴ = 206056267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206072653) 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, 5422946 + ... + 5422983.

It is an arithmetic number, because the mean of its divisors is an integer number (54229650).

Almost surely, 2^206072651 is an apocalyptic number.

206072651 is a deficient number, since it is larger than the sum of its proper divisors (10845949).

206072651 is a wasteful number, since it uses less digits than its factorization.

206072651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845948.

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

The square root of 206072651 is about 14355.2307888100. The cubic root of 206072651 is about 590.6634794075.

The spelling of 206072651 in words is "two hundred six million, seventy-two thousand, six hundred fifty-one".