3005278061 has 2 divisors, whose sum is σ = 3005278062. Its totient is φ = 3005278060.

The previous prime is 3005277997. The next prime is 3005278069. The reversal of 3005278061 is 1608725003.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1988624836 + 1016653225 = 44594^2 + 31885^2 .

It is a cyclic number.

It is not a de Polignac number, because 3005278061 - 2⁶ = 3005277997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3005278069) 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, 1502639030 + 1502639031.

It is an arithmetic number, because the mean of its divisors is an integer number (1502639031).

Almost surely, 2^3005278061 is an apocalyptic number.

It is an amenable number.

3005278061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3005278061 is an equidigital number, since it uses as much as digits as its factorization.

3005278061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 3005278061 is about 54820.4164613878. The cubic root of 3005278061 is about 1443.0948837892.

The spelling of 3005278061 in words is "three billion, five million, two hundred seventy-eight thousand, sixty-one".