205103104 has 28 divisors (see below), whose sum is σ = 410197554. Its totient is φ = 102547456.

The previous prime is 205103071. The next prime is 205103137. The reversal of 205103104 is 401301502.

It is an interprime number because it is at equal distance from previous prime (205103071) and next prime (205103137).

It can be written as a sum of positive squares in only one way, i.e., 175509504 + 29593600 = 13248^2 + 5440^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4327 + ... + 20710.

Almost surely, 2^205103104 is an apocalyptic number.

It is an amenable number.

205103104 is a deficient number, since it is larger than the sum of its proper divisors (205094450).

205103104 is an frugal number, since it uses more digits than its factorization.

205103104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25063 (or 25039 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 205103104 is about 14321.4211585303. The cubic root of 205103104 is about 589.7356893288.

Adding to 205103104 its reverse (401301502), we get a palindrome (606404606).

The spelling of 205103104 in words is "two hundred five million, one hundred three thousand, one hundred four".