102547 has 2 divisors, whose sum is σ = 102548. Its totient is φ = 102546.

The previous prime is 102539. The next prime is 102551. The reversal of 102547 is 745201.

It is a strong prime.

It is an emirp because it is prime and its reverse (745201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102547 - 2³ = 102539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51273 + 51274.

It is an arithmetic number, because the mean of its divisors is an integer number (51274).

2¹⁰²⁵⁴⁷ is an apocalyptic number.

102547 is a deficient number, since it is larger than the sum of its proper divisors (1).

102547 is an equidigital number, since it uses as much as digits as its factorization.

102547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 102547 is about 320.2296051273. The cubic root of 102547 is about 46.8066601182.

Adding to 102547 its reverse (745201), we get a palindrome (847748).

The spelling of 102547 in words is "one hundred two thousand, five hundred forty-seven".