206536071 has 16 divisors (see below), whose sum is σ = 320661504. Its totient is φ = 115793184.

The previous prime is 206536063. The next prime is 206536079. The reversal of 206536071 is 170635602.

It is an interprime number because it is at equal distance from previous prime (206536063) and next prime (206536079).

It is not a de Polignac number, because 206536071 - 2³ = 206536063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206536079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91671 + ... + 93896.

It is an arithmetic number, because the mean of its divisors is an integer number (20041344).

Almost surely, 2^206536071 is an apocalyptic number.

206536071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206536071 is a deficient number, since it is larger than the sum of its proper divisors (114125433).

206536071 is a wasteful number, since it uses less digits than its factorization.

206536071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185630.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 206536071 is about 14371.3628790035. The cubic root of 206536071 is about 591.1059129183.

The spelling of 206536071 in words is "two hundred six million, five hundred thirty-six thousand, seventy-one".