206945485 has 8 divisors (see below), whose sum is σ = 248443416. Its totient is φ = 165483840.

The previous prime is 206945441. The next prime is 206945507. The reversal of 206945485 is 584549602.

It can be written as a sum of positive squares in 4 ways, for example, as 5248681 + 201696804 = 2291^2 + 14202^2 .

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

It is not a de Polignac number, because 206945485 - 2⁹ = 206944973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5655 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (31055427).

Almost surely, 2^206945485 is an apocalyptic number.

It is an amenable number.

206945485 is a deficient number, since it is larger than the sum of its proper divisors (41497931).

206945485 is a wasteful number, since it uses less digits than its factorization.

206945485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18143.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 206945485 is about 14385.5999179735. The cubic root of 206945485 is about 591.4962358641.

The spelling of 206945485 in words is "two hundred six million, nine hundred forty-five thousand, four hundred eighty-five".