6081252721 has 2 divisors, whose sum is σ = 6081252722. Its totient is φ = 6081252720.

The previous prime is 6081252707. The next prime is 6081252791. The reversal of 6081252721 is 1272521806.

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., 5613006400 + 468246321 = 74920^2 + 21639^2 .

It is a cyclic number.

It is not a de Polignac number, because 6081252721 - 2¹⁵ = 6081219953 is a prime.

It is not a weakly prime, because it can be changed into another prime (6081252791) 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, 3040626360 + 3040626361.

It is an arithmetic number, because the mean of its divisors is an integer number (3040626361).

Almost surely, 2^6081252721 is an apocalyptic number.

It is an amenable number.

6081252721 is a deficient number, since it is larger than the sum of its proper divisors (1).

6081252721 is an equidigital number, since it uses as much as digits as its factorization.

6081252721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 6081252721 is about 77982.3872486602. The cubic root of 6081252721 is about 1825.2863973877.

The spelling of 6081252721 in words is "six billion, eighty-one million, two hundred fifty-two thousand, seven hundred twenty-one".