3012991 has 2 divisors, whose sum is σ = 3012992. Its totient is φ = 3012990.

The previous prime is 3012979. The next prime is 3013007. The reversal of 3012991 is 1992103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3012991 - 2⁹ = 3012479 is a prime.

It is a super-2 number, since 2×3012991² = 18156229532162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3012901) 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, 1506495 + 1506496.

It is an arithmetic number, because the mean of its divisors is an integer number (1506496).

Almost surely, 2^3012991 is an apocalyptic number.

3012991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3012991 is an equidigital number, since it uses as much as digits as its factorization.

3012991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 3012991 is about 1735.7969351281. The cubic root of 3012991 is about 144.4328379673.

It can be divided in two parts, 3012 and 991, that multiplied together give a palindrome (2984892).

The spelling of 3012991 in words is "three million, twelve thousand, nine hundred ninety-one".