206210036 has 6 divisors (see below), whose sum is σ = 360867570. Its totient is φ = 103105016.

The previous prime is 206210023. The next prime is 206210041. The reversal of 206210036 is 630012602.

It can be written as a sum of positive squares in only one way, i.e., 106090000 + 100120036 = 10300^2 + 10006^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 25776251 + ... + 25776258.

It is an arithmetic number, because the mean of its divisors is an integer number (60144595).

Almost surely, 2^206210036 is an apocalyptic number.

It is an amenable number.

206210036 is a deficient number, since it is larger than the sum of its proper divisors (154657534).

206210036 is a wasteful number, since it uses less digits than its factorization.

206210036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51552513 (or 51552511 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 206210036 is about 14360.0151810505. The cubic root of 206210036 is about 590.7947118879.

Adding to 206210036 its reverse (630012602), we get a palindrome (836222638).

The spelling of 206210036 in words is "two hundred six million, two hundred ten thousand, thirty-six".