205801364 has 6 divisors (see below), whose sum is σ = 360152394. Its totient is φ = 102900680.

The previous prime is 205801357. The next prime is 205801403. The reversal of 205801364 is 463108502.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 68724100 = 11708^2 + 8290^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25725167 + ... + 25725174.

It is an arithmetic number, because the mean of its divisors is an integer number (60025399).

Almost surely, 2^205801364 is an apocalyptic number.

It is an amenable number.

205801364 is a deficient number, since it is larger than the sum of its proper divisors (154351030).

205801364 is a wasteful number, since it uses less digits than its factorization.

205801364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51450345 (or 51450343 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 205801364 is about 14345.7786125396. The cubic root of 205801364 is about 590.4041700645.

Adding to 205801364 its reverse (463108502), we get a palindrome (668909866).

The spelling of 205801364 in words is "two hundred five million, eight hundred one thousand, three hundred sixty-four".