205304159 has 2 divisors, whose sum is σ = 205304160. Its totient is φ = 205304158.

The previous prime is 205304153. The next prime is 205304161. The reversal of 205304159 is 951403502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205304159 is a prime.

Together with 205304161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205304153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102652079 + 102652080.

It is an arithmetic number, because the mean of its divisors is an integer number (102652080).

Almost surely, 2^205304159 is an apocalyptic number.

205304159 is a deficient number, since it is larger than the sum of its proper divisors (1).

205304159 is an equidigital number, since it uses as much as digits as its factorization.

205304159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 205304159 is about 14328.4388193550. The cubic root of 205304159 is about 589.9283251052.

The spelling of 205304159 in words is "two hundred five million, three hundred four thousand, one hundred fifty-nine".