103806536549 has 2 divisors, whose sum is σ = 103806536550. Its totient is φ = 103806536548.

The previous prime is 103806536539. The next prime is 103806536551. The reversal of 103806536549 is 945635608301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82796034049 + 21010502500 = 287743^2 + 144950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103806536549 is a prime.

It is a Sophie Germain prime.

Together with 103806536551, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103806536497 and 103806536506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103806536539) 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, 51903268274 + 51903268275.

It is an arithmetic number, because the mean of its divisors is an integer number (51903268275).

Almost surely, 2^103806536549 is an apocalyptic number.

It is an amenable number.

103806536549 is a deficient number, since it is larger than the sum of its proper divisors (1).

103806536549 is an equidigital number, since it uses as much as digits as its factorization.

103806536549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 103806536549 in words is "one hundred three billion, eight hundred six million, five hundred thirty-six thousand, five hundred forty-nine".