206475271 has 4 divisors (see below), whose sum is σ = 206512200. Its totient is φ = 206438344.

The previous prime is 206475263. The next prime is 206475287. The reversal of 206475271 is 172574602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172574602 = 2 ⋅86287301.

It is a cyclic number.

It is not a de Polignac number, because 206475271 - 2³ = 206475263 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 (206475571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8161 + ... + 21898.

It is an arithmetic number, because the mean of its divisors is an integer number (51628050).

Almost surely, 2^206475271 is an apocalyptic number.

206475271 is a deficient number, since it is larger than the sum of its proper divisors (36929).

206475271 is an equidigital number, since it uses as much as digits as its factorization.

206475271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36928.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 206475271 is about 14369.2474054837. The cubic root of 206475271 is about 591.0479040574.

The spelling of 206475271 in words is "two hundred six million, four hundred seventy-five thousand, two hundred seventy-one".