205114387 has 2 divisors, whose sum is σ = 205114388. Its totient is φ = 205114386.

The previous prime is 205114381. The next prime is 205114423. The reversal of 205114387 is 783411502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205114387 - 2³ = 205114379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205114381) 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, 102557193 + 102557194.

It is an arithmetic number, because the mean of its divisors is an integer number (102557194).

Almost surely, 2^205114387 is an apocalyptic number.

205114387 is a deficient number, since it is larger than the sum of its proper divisors (1).

205114387 is an equidigital number, since it uses as much as digits as its factorization.

205114387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 205114387 is about 14321.8150735163. The cubic root of 205114387 is about 589.7465031839.

Adding to 205114387 its reverse (783411502), we get a palindrome (988525889).

The spelling of 205114387 in words is "two hundred five million, one hundred fourteen thousand, three hundred eighty-seven".