206544130 has 16 divisors (see below), whose sum is σ = 400378104. Its totient is φ = 76262400.

The previous prime is 206544113. The next prime is 206544187. The reversal of 206544130 is 31445602.

It can be written as a sum of positive squares in 4 ways, for example, as 82065481 + 124478649 = 9059^2 + 11157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206544095 and 206544104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794271 + ... + 794530.

Almost surely, 2^206544130 is an apocalyptic number.

206544130 is a deficient number, since it is larger than the sum of its proper divisors (193833974).

206544130 is a wasteful number, since it uses less digits than its factorization.

206544130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588821.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 206544130 is about 14371.6432602539. The cubic root of 206544130 is about 591.1136011002.

Adding to 206544130 its reverse (31445602), we get a palindrome (237989732).

The spelling of 206544130 in words is "two hundred six million, five hundred forty-four thousand, one hundred thirty".