102568205 has 4 divisors (see below), whose sum is σ = 123081852. Its totient is φ = 82054560.

The previous prime is 102568177. The next prime is 102568211. The reversal of 102568205 is 502865201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502865201 = 59 ⋅8523139.

It can be written as a sum of positive squares in 2 ways, for example, as 49758916 + 52809289 = 7054^2 + 7267^2 .

It is not a de Polignac number, because 102568205 - 2¹⁰ = 102567181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10256816 + ... + 10256825.

It is an arithmetic number, because the mean of its divisors is an integer number (30770463).

Almost surely, 2^102568205 is an apocalyptic number.

It is an amenable number.

102568205 is a deficient number, since it is larger than the sum of its proper divisors (20513647).

102568205 is an equidigital number, since it uses as much as digits as its factorization.

102568205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20513646.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 102568205 is about 10127.5962103552. The cubic root of 102568205 is about 468.0988617333.

The spelling of 102568205 in words is "one hundred two million, five hundred sixty-eight thousand, two hundred five".