3061218491 has 2 divisors, whose sum is σ = 3061218492. Its totient is φ = 3061218490.

The previous prime is 3061218487. The next prime is 3061218527. The reversal of 3061218491 is 1948121603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3061218491 - 2² = 3061218487 is a prime.

It is not a weakly prime, because it can be changed into another prime (3061218431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530609245 + 1530609246.

It is an arithmetic number, because the mean of its divisors is an integer number (1530609246).

Almost surely, 2^3061218491 is an apocalyptic number.

3061218491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3061218491 is an equidigital number, since it uses as much as digits as its factorization.

3061218491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3061218491 is about 55328.2793063366. The cubic root of 3061218491 is about 1451.9938470029.

The spelling of 3061218491 in words is "three billion, sixty-one million, two hundred eighteen thousand, four hundred ninety-one".