206136325 has 6 divisors (see below), whose sum is σ = 255609074. Its totient is φ = 164909040.

The previous prime is 206136319. The next prime is 206136353. The reversal of 206136325 is 523631602.

It can be written as a sum of positive squares in 3 ways, for example, as 586756 + 205549569 = 766^2 + 14337^2 .

It is not a de Polignac number, because 206136325 - 2⁷ = 206136197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206136293 and 206136302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4122702 + ... + 4122751.

Almost surely, 2^206136325 is an apocalyptic number.

206136325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206136325 is a deficient number, since it is larger than the sum of its proper divisors (49472749).

206136325 is an equidigital number, since it uses as much as digits as its factorization.

206136325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8245463 (or 8245458 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 206136325 is about 14357.4484153696. The cubic root of 206136325 is about 590.7243091411.

Adding to 206136325 its reverse (523631602), we get a palindrome (729767927).

The spelling of 206136325 in words is "two hundred six million, one hundred thirty-six thousand, three hundred twenty-five".