3049127981 has 2 divisors, whose sum is σ = 3049127982. Its totient is φ = 3049127980.

The previous prime is 3049127971. The next prime is 3049127987. The reversal of 3049127981 is 1897219403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2479542025 + 569585956 = 49795^2 + 23866^2 .

It is an emirp because it is prime and its reverse (1897219403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3049127981 - 2¹⁰ = 3049126957 is a prime.

It is a super-2 number, since 2×3049127981² = 18594362889034272722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3049127987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1524563990 + 1524563991.

It is an arithmetic number, because the mean of its divisors is an integer number (1524563991).

Almost surely, 2^3049127981 is an apocalyptic number.

It is an amenable number.

3049127981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3049127981 is an equidigital number, since it uses as much as digits as its factorization.

3049127981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3049127981 is about 55218.9096324801. The cubic root of 3049127981 is about 1450.0797389363.

The spelling of 3049127981 in words is "three billion, forty-nine million, one hundred twenty-seven thousand, nine hundred eighty-one".