205102046 has 8 divisors (see below), whose sum is σ = 310640304. Its totient is φ = 101555280.

The previous prime is 205102021. The next prime is 205102067. The reversal of 205102046 is 640201502.

It is a happy number.

205102046 is digitally balanced in base 3, 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 a super-2 number, since 2×205102046² = 84133698546772232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497615 + ... + 498026.

It is an arithmetic number, because the mean of its divisors is an integer number (38830038).

Almost surely, 2^205102046 is an apocalyptic number.

205102046 is a deficient number, since it is larger than the sum of its proper divisors (105538258).

205102046 is a wasteful number, since it uses less digits than its factorization.

205102046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995746.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 205102046 is about 14321.3842208077. The cubic root of 205102046 is about 589.7346752999.

Adding to 205102046 its reverse (640201502), we get a palindrome (845303548).

The spelling of 205102046 in words is "two hundred five million, one hundred two thousand, forty-six".