102247 has 4 divisors (see below), whose sum is σ = 104040. Its totient is φ = 100456.

The previous prime is 102241. The next prime is 102251. The reversal of 102247 is 742201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102241) 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, 808 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (26010).

2¹⁰²²⁴⁷ is an apocalyptic number.

102247 is a deficient number, since it is larger than the sum of its proper divisors (1793).

102247 is an equidigital number, since it uses as much as digits as its factorization.

102247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 102247 is about 319.7608481350. The cubic root of 102247 is about 46.7609714305.

Adding to 102247 its reverse (742201), we get a palindrome (844448).

The spelling of 102247 in words is "one hundred two thousand, two hundred forty-seven", and thus it is an iban number.