205281113 has 2 divisors, whose sum is σ = 205281114. Its totient is φ = 205281112.

The previous prime is 205281091. The next prime is 205281127. The reversal of 205281113 is 311182502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110082064 + 95199049 = 10492^2 + 9757^2 .

It is a cyclic number.

It is not a de Polignac number, because 205281113 - 2⁸ = 205280857 is a prime.

It is not a weakly prime, because it can be changed into another prime (205281173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102640556 + 102640557.

It is an arithmetic number, because the mean of its divisors is an integer number (102640557).

Almost surely, 2^205281113 is an apocalyptic number.

It is an amenable number.

205281113 is a deficient number, since it is larger than the sum of its proper divisors (1).

205281113 is an equidigital number, since it uses as much as digits as its factorization.

205281113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 205281113 is about 14327.6345919346. The cubic root of 205281113 is about 589.9062505452.

The spelling of 205281113 in words is "two hundred five million, two hundred eighty-one thousand, one hundred thirteen".