206226131 has 2 divisors, whose sum is σ = 206226132. Its totient is φ = 206226130.

The previous prime is 206226113. The next prime is 206226157. The reversal of 206226131 is 131622602.

Together with previous prime (206226113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206226131 - 2¹⁴ = 206209747 is a prime.

It is a super-2 number, since 2×206226131² = 85058434214458322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206226097 and 206226106.

It is not a weakly prime, because it can be changed into another prime (206226191) by changing a digit.

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, 103113065 + 103113066.

It is an arithmetic number, because the mean of its divisors is an integer number (103113066).

Almost surely, 2^206226131 is an apocalyptic number.

206226131 is a deficient number, since it is larger than the sum of its proper divisors (1).

206226131 is an equidigital number, since it uses as much as digits as its factorization.

206226131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 206226131 is about 14360.5755803867. The cubic root of 206226131 is about 590.8100822900.

Adding to 206226131 its reverse (131622602), we get a palindrome (337848733).

The spelling of 206226131 in words is "two hundred six million, two hundred twenty-six thousand, one hundred thirty-one".