9020761549 has 2 divisors, whose sum is σ = 9020761550. Its totient is φ = 9020761548.

The previous prime is 9020761531. The next prime is 9020761573. The reversal of 9020761549 is 9451670209.

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., 9004681449 + 16080100 = 94893^2 + 4010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9020761549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9020761349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510380774 + 4510380775.

It is an arithmetic number, because the mean of its divisors is an integer number (4510380775).

Almost surely, 2^9020761549 is an apocalyptic number.

It is an amenable number.

9020761549 is a deficient number, since it is larger than the sum of its proper divisors (1).

9020761549 is an equidigital number, since it uses as much as digits as its factorization.

9020761549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 9020761549 is about 94977.6897434340. The cubic root of 9020761549 is about 2081.6820673919.

The spelling of 9020761549 in words is "nine billion, twenty million, seven hundred sixty-one thousand, five hundred forty-nine".