103806530549 has 2 divisors, whose sum is σ = 103806530550. Its totient is φ = 103806530548.

The previous prime is 103806530501. The next prime is 103806530557. The reversal of 103806530549 is 945035608301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58089676324 + 45716854225 = 241018^2 + 213815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103806530549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103806536549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51903265274 + 51903265275.

It is an arithmetic number, because the mean of its divisors is an integer number (51903265275).

Almost surely, 2^103806530549 is an apocalyptic number.

It is an amenable number.

103806530549 is a deficient number, since it is larger than the sum of its proper divisors (1).

103806530549 is an equidigital number, since it uses as much as digits as its factorization.

103806530549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 103806530549 in words is "one hundred three billion, eight hundred six million, five hundred thirty thousand, five hundred forty-nine".