205103983 has 6 divisors (see below), whose sum is σ = 234447864. Its totient is φ = 175770936.

The previous prime is 205103981. The next prime is 205104007. The reversal of 205103983 is 389301502.

It is a happy number.

It is not a de Polignac number, because 205103983 - 2¹ = 205103981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205103981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35185 + ... + 40597.

It is an arithmetic number, because the mean of its divisors is an integer number (39074644).

Almost surely, 2^205103983 is an apocalyptic number.

205103983 is a deficient number, since it is larger than the sum of its proper divisors (29343881).

205103983 is an frugal number, since it uses more digits than its factorization.

205103983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 205103983 is about 14321.4518467926. The cubic root of 205103983 is about 589.7365317944.

The spelling of 205103983 in words is "two hundred five million, one hundred three thousand, nine hundred eighty-three".