205132236247 has 2 divisors, whose sum is σ = 205132236248. Its totient is φ = 205132236246.

The previous prime is 205132236233. The next prime is 205132236269. The reversal of 205132236247 is 742632231502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205132236247 - 2⁷ = 205132236119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205132236347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102566118123 + 102566118124.

It is an arithmetic number, because the mean of its divisors is an integer number (102566118124).

Almost surely, 2^205132236247 is an apocalyptic number.

205132236247 is a deficient number, since it is larger than the sum of its proper divisors (1).

205132236247 is an equidigital number, since it uses as much as digits as its factorization.

205132236247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 205132236247 its reverse (742632231502), we get a palindrome (947764467749).

The spelling of 205132236247 in words is "two hundred five billion, one hundred thirty-two million, two hundred thirty-six thousand, two hundred forty-seven".