102287 has 4 divisors (see below), whose sum is σ = 102960. Its totient is φ = 101616.

The previous prime is 102259. The next prime is 102293. The reversal of 102287 is 782201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102287 - 2⁸ = 102031 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102287.

It is not an unprimeable number, because it can be changed into a prime (102217) by changing a digit.

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, 14 + ... + 452.

It is an arithmetic number, because the mean of its divisors is an integer number (25740).

2¹⁰²²⁸⁷ is an apocalyptic number.

102287 is a deficient number, since it is larger than the sum of its proper divisors (673).

102287 is an equidigital number, since it uses as much as digits as its factorization.

102287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 102287 is about 319.8233887632. The cubic root of 102287 is about 46.7670684146.

Adding to 102287 its reverse (782201), we get a palindrome (884488).

The spelling of 102287 in words is "one hundred two thousand, two hundred eighty-seven".