1051272791 has 2 divisors, whose sum is σ = 1051272792. Its totient is φ = 1051272790.

The previous prime is 1051272779. The next prime is 1051272811. The reversal of 1051272791 is 1972721501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051272791 - 2⁶ = 1051272727 is a prime.

It is a super-2 number, since 2×1051272791² = 2210348962193859362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051272491) 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, 525636395 + 525636396.

It is an arithmetic number, because the mean of its divisors is an integer number (525636396).

Almost surely, 2^1051272791 is an apocalyptic number.

1051272791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051272791 is an equidigital number, since it uses as much as digits as its factorization.

1051272791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1051272791 is about 32423.3371354646. The cubic root of 1051272791 is about 1016.8068767418.

The spelling of 1051272791 in words is "one billion, fifty-one million, two hundred seventy-two thousand, seven hundred ninety-one".