205132087 has 2 divisors, whose sum is σ = 205132088. Its totient is φ = 205132086.

The previous prime is 205132043. The next prime is 205132129. The reversal of 205132087 is 780231502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205132087 - 2²³ = 196743479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205132007) 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, 102566043 + 102566044.

It is an arithmetic number, because the mean of its divisors is an integer number (102566044).

Almost surely, 2^205132087 is an apocalyptic number.

205132087 is a deficient number, since it is larger than the sum of its proper divisors (1).

205132087 is an equidigital number, since it uses as much as digits as its factorization.

205132087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 205132087 is about 14322.4329986214. The cubic root of 205132087 is about 589.7634664225.

Adding to 205132087 its reverse (780231502), we get a palindrome (985363589).

The spelling of 205132087 in words is "two hundred five million, one hundred thirty-two thousand, eighty-seven".