206676131 has 2 divisors, whose sum is σ = 206676132. Its totient is φ = 206676130.

The previous prime is 206676083. The next prime is 206676133. The reversal of 206676131 is 131676602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206676131 - 2²² = 202481827 is a prime.

It is a super-2 number, since 2×206676131² = 85430046250258322, which contains 22 as substring.

Together with 206676133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206676133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103338065 + 103338066.

It is an arithmetic number, because the mean of its divisors is an integer number (103338066).

Almost surely, 2^206676131 is an apocalyptic number.

206676131 is a deficient number, since it is larger than the sum of its proper divisors (1).

206676131 is an equidigital number, since it uses as much as digits as its factorization.

206676131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 206676131 is about 14376.2349382583. The cubic root of 206676131 is about 591.2394998932.

The spelling of 206676131 in words is "two hundred six million, six hundred seventy-six thousand, one hundred thirty-one".