205854413 has 8 divisors (see below), whose sum is σ = 207829440. Its totient is φ = 203886720.

The previous prime is 205854409. The next prime is 205854431. The reversal of 205854413 is 314458502.

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

It is a cyclic number.

It is not a de Polignac number, because 205854413 - 2² = 205854409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205854413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205854403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66173 + ... + 69213.

It is an arithmetic number, because the mean of its divisors is an integer number (25978680).

Almost surely, 2^205854413 is an apocalyptic number.

It is an amenable number.

205854413 is a deficient number, since it is larger than the sum of its proper divisors (1975027).

205854413 is a wasteful number, since it uses less digits than its factorization.

205854413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 205854413 is about 14347.6274345273. The cubic root of 205854413 is about 590.4548948013.

The spelling of 205854413 in words is "two hundred five million, eight hundred fifty-four thousand, four hundred thirteen".