3020816549 has 2 divisors, whose sum is σ = 3020816550. Its totient is φ = 3020816548.

The previous prime is 3020816543. The next prime is 3020816569. The reversal of 3020816549 is 9456180203.

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., 2857437025 + 163379524 = 53455^2 + 12782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020816549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020816543) 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 as a sum of consecutive naturals, namely, 1510408274 + 1510408275.

It is an arithmetic number, because the mean of its divisors is an integer number (1510408275).

Almost surely, 2^3020816549 is an apocalyptic number.

It is an amenable number.

3020816549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020816549 is an equidigital number, since it uses as much as digits as its factorization.

3020816549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3020816549 is about 54961.9554692152. The cubic root of 3020816549 is about 1445.5777352410.

The spelling of 3020816549 in words is "three billion, twenty million, eight hundred sixteen thousand, five hundred forty-nine".