102281287 has 2 divisors, whose sum is σ = 102281288. Its totient is φ = 102281286.

The previous prime is 102281273. The next prime is 102281297. The reversal of 102281287 is 782182201.

It is a strong prime.

It is an emirp because it is prime and its reverse (782182201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102281287 - 2¹⁹ = 101756999 is a prime.

It is a super-2 number, since 2×102281287² = 20922923340752738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102281227) 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 as a sum of consecutive naturals, namely, 51140643 + 51140644.

It is an arithmetic number, because the mean of its divisors is an integer number (51140644).

Almost surely, 2^102281287 is an apocalyptic number.

102281287 is a deficient number, since it is larger than the sum of its proper divisors (1).

102281287 is an equidigital number, since it uses as much as digits as its factorization.

102281287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 102281287 is about 10113.4211323370. The cubic root of 102281287 is about 467.6619771019.

The spelling of 102281287 in words is "one hundred two million, two hundred eighty-one thousand, two hundred eighty-seven".