206434245 has 8 divisors (see below), whose sum is σ = 330294816. Its totient is φ = 110098256.

The previous prime is 206434237. The next prime is 206434253. The reversal of 206434245 is 542434602.

It is an interprime number because it is at equal distance from previous prime (206434237) and next prime (206434253).

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

It is a cyclic number.

It is not a de Polignac number, because 206434245 - 2³ = 206434237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6881127 + ... + 6881156.

It is an arithmetic number, because the mean of its divisors is an integer number (41286852).

Almost surely, 2^206434245 is an apocalyptic number.

It is an amenable number.

206434245 is a deficient number, since it is larger than the sum of its proper divisors (123860571).

206434245 is a wasteful number, since it uses less digits than its factorization.

206434245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762291.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 206434245 is about 14367.8197719765. The cubic root of 206434245 is about 591.0087549987.

Adding to 206434245 its reverse (542434602), we get a palindrome (748868847).

The spelling of 206434245 in words is "two hundred six million, four hundred thirty-four thousand, two hundred forty-five".