7224140549 has 2 divisors, whose sum is σ = 7224140550. Its totient is φ = 7224140548.

The previous prime is 7224140519. The next prime is 7224140621. The reversal of 7224140549 is 9450414227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7024116100 + 200024449 = 83810^2 + 14143^2 .

It is a cyclic number.

It is not a de Polignac number, because 7224140549 - 2¹² = 7224136453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7224140519) 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, 3612070274 + 3612070275.

It is an arithmetic number, because the mean of its divisors is an integer number (3612070275).

Almost surely, 2^7224140549 is an apocalyptic number.

It is an amenable number.

7224140549 is a deficient number, since it is larger than the sum of its proper divisors (1).

7224140549 is an equidigital number, since it uses as much as digits as its factorization.

7224140549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 7224140549 is about 84994.9442555262. The cubic root of 7224140549 is about 1933.1344584142.

The spelling of 7224140549 in words is "seven billion, two hundred twenty-four million, one hundred forty thousand, five hundred forty-nine".