206148243 has 12 divisors (see below), whose sum is σ = 319740360. Its totient is φ = 117798912.

The previous prime is 206148227. The next prime is 206148247. The reversal of 206148243 is 342841602.

It is not a de Polignac number, because 206148243 - 2⁴ = 206148227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206148243.

It is not an unprimeable number, because it can be changed into a prime (206148247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 701038 + ... + 701331.

It is an arithmetic number, because the mean of its divisors is an integer number (26645030).

Almost surely, 2^206148243 is an apocalyptic number.

206148243 is a deficient number, since it is larger than the sum of its proper divisors (113592117).

206148243 is a wasteful number, since it uses less digits than its factorization.

206148243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402386 (or 1402379 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 206148243 is about 14357.8634552638. The cubic root of 206148243 is about 590.7356933818.

Adding to 206148243 its reverse (342841602), we get a palindrome (548989845).

The spelling of 206148243 in words is "two hundred six million, one hundred forty-eight thousand, two hundred forty-three".