205384095401 has 2 divisors, whose sum is σ = 205384095402. Its totient is φ = 205384095400.

The previous prime is 205384095337. The next prime is 205384095403. The reversal of 205384095401 is 104590483502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203808005401 + 1576090000 = 451451^2 + 39700^2 .

It is a cyclic number.

It is not a de Polignac number, because 205384095401 - 2⁶ = 205384095337 is a prime.

Together with 205384095403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205384095403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102692047700 + 102692047701.

It is an arithmetic number, because the mean of its divisors is an integer number (102692047701).

Almost surely, 2^205384095401 is an apocalyptic number.

It is an amenable number.

205384095401 is a deficient number, since it is larger than the sum of its proper divisors (1).

205384095401 is an equidigital number, since it uses as much as digits as its factorization.

205384095401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 205384095401 in words is "two hundred five billion, three hundred eighty-four million, ninety-five thousand, four hundred one".