205066951 has 2 divisors, whose sum is σ = 205066952. Its totient is φ = 205066950.

The previous prime is 205066879. The next prime is 205066973. The reversal of 205066951 is 159660502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205066951 - 2²³ = 196678343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205066151) 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, 102533475 + 102533476.

It is an arithmetic number, because the mean of its divisors is an integer number (102533476).

Almost surely, 2^205066951 is an apocalyptic number.

205066951 is a deficient number, since it is larger than the sum of its proper divisors (1).

205066951 is an equidigital number, since it uses as much as digits as its factorization.

205066951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 205066951 is about 14320.1589027496. The cubic root of 205066951 is about 589.7010368917.

The spelling of 205066951 in words is "two hundred five million, sixty-six thousand, nine hundred fifty-one".