205813365 has 8 divisors (see below), whose sum is σ = 329301408. Its totient is φ = 109767120.

The previous prime is 205813337. The next prime is 205813381. The reversal of 205813365 is 563318502.

205813365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205813365 - 2¹¹ = 205811317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6860431 + ... + 6860460.

It is an arithmetic number, because the mean of its divisors is an integer number (41162676).

Almost surely, 2^205813365 is an apocalyptic number.

It is an amenable number.

205813365 is a deficient number, since it is larger than the sum of its proper divisors (123488043).

205813365 is a wasteful number, since it uses less digits than its factorization.

205813365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13720899.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 205813365 is about 14346.1968827979. The cubic root of 205813365 is about 590.4156460214.

The spelling of 205813365 in words is "two hundred five million, eight hundred thirteen thousand, three hundred sixty-five".