205401433 has 2 divisors, whose sum is σ = 205401434. Its totient is φ = 205401432.

The previous prime is 205401407. The next prime is 205401481. The reversal of 205401433 is 334104502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112529664 + 92871769 = 10608^2 + 9637^2 .

It is a cyclic number.

It is not a de Polignac number, because 205401433 - 2⁵ = 205401401 is a prime.

It is not a weakly prime, because it can be changed into another prime (205431433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102700716 + 102700717.

It is an arithmetic number, because the mean of its divisors is an integer number (102700717).

Almost surely, 2^205401433 is an apocalyptic number.

It is an amenable number.

205401433 is a deficient number, since it is larger than the sum of its proper divisors (1).

205401433 is an equidigital number, since it uses as much as digits as its factorization.

205401433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 205401433 is about 14331.8328555701. The cubic root of 205401433 is about 590.0214805930.

Adding to 205401433 its reverse (334104502), we get a palindrome (539505935).

The spelling of 205401433 in words is "two hundred five million, four hundred one thousand, four hundred thirty-three".