102682609 has 2 divisors, whose sum is σ = 102682610. Its totient is φ = 102682608.

The previous prime is 102682589. The next prime is 102682637. The reversal of 102682609 is 906286201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58752225 + 43930384 = 7665^2 + 6628^2 .

It is a cyclic number.

It is not a de Polignac number, because 102682609 - 2²⁵ = 69128177 is a prime.

It is not a weakly prime, because it can be changed into another prime (102682109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51341304 + 51341305.

It is an arithmetic number, because the mean of its divisors is an integer number (51341305).

Almost surely, 2^102682609 is an apocalyptic number.

It is an amenable number.

102682609 is a deficient number, since it is larger than the sum of its proper divisors (1).

102682609 is an equidigital number, since it uses as much as digits as its factorization.

102682609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 102682609 is about 10133.2427682356. The cubic root of 102682609 is about 468.2728353470.

The spelling of 102682609 in words is "one hundred two million, six hundred eighty-two thousand, six hundred nine".