206045245 has 32 divisors (see below), whose sum is σ = 290016000. Its totient is φ = 140470848.

The previous prime is 206045237. The next prime is 206045297. The reversal of 206045245 is 542540602.

It is not a de Polignac number, because 206045245 - 2³ = 206045237 is a prime.

It is a super-2 number, since 2×206045245² = 84909285974220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543466 + ... + 543844.

It is an arithmetic number, because the mean of its divisors is an integer number (9063000).

Almost surely, 2^206045245 is an apocalyptic number.

It is an amenable number.

206045245 is a deficient number, since it is larger than the sum of its proper divisors (83970755).

206045245 is an equidigital number, since it uses as much as digits as its factorization.

206045245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 206045245 is about 14354.2761921317. The cubic root of 206045245 is about 590.6372937542.

Adding to 206045245 its reverse (542540602), we get a palindrome (748585847).

It can be divided in two parts, 206045 and 245, that multiplied together give a square (50481025 = 7105²).

The spelling of 206045245 in words is "two hundred six million, forty-five thousand, two hundred forty-five".