206326051 has 2 divisors, whose sum is σ = 206326052. Its totient is φ = 206326050.

The previous prime is 206326037. The next prime is 206326079. The reversal of 206326051 is 150623602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206326051 - 2⁵ = 206326019 is a prime.

It is not a weakly prime, because it can be changed into another prime (206326751) 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, 103163025 + 103163026.

It is an arithmetic number, because the mean of its divisors is an integer number (103163026).

Almost surely, 2^206326051 is an apocalyptic number.

206326051 is a deficient number, since it is larger than the sum of its proper divisors (1).

206326051 is an equidigital number, since it uses as much as digits as its factorization.

206326051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 206326051 is about 14364.0541282745. The cubic root of 206326051 is about 590.9054859963.

Adding to 206326051 its reverse (150623602), we get a palindrome (356949653).

The spelling of 206326051 in words is "two hundred six million, three hundred twenty-six thousand, fifty-one".