102281 has 4 divisors (see below), whose sum is σ = 106752. Its totient is φ = 97812.

The previous prime is 102259. The next prime is 102293. The reversal of 102281 is 182201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102281 - 2⁶ = 102217 is a prime.

It is a super-2 number, since 2×102281² = 20922805922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102281.

It is not an unprimeable number, because it can be changed into a prime (102241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (26688).

2¹⁰²²⁸¹ is an apocalyptic number.

It is an amenable number.

102281 is a deficient number, since it is larger than the sum of its proper divisors (4471).

102281 is an equidigital number, since it uses as much as digits as its factorization.

102281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 102281 is about 319.8140084487. The cubic root of 102281 is about 46.7661539684.

Adding to 102281 its reverse (182201), we get a palindrome (284482).

It can be divided in two parts, 102 and 281, that added together give a palindrome (383).

The spelling of 102281 in words is "one hundred two thousand, two hundred eighty-one".