1056978751 has 2 divisors, whose sum is σ = 1056978752. Its totient is φ = 1056978750.

The previous prime is 1056978739. The next prime is 1056978761. The reversal of 1056978751 is 1578796501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1578796501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1056978751 - 2⁵ = 1056978719 is a prime.

It is a super-2 number, since 2×1056978751² = 2234408160131040002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056978695 and 1056978704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056978761) 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, 528489375 + 528489376.

It is an arithmetic number, because the mean of its divisors is an integer number (528489376).

Almost surely, 2^1056978751 is an apocalyptic number.

1056978751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056978751 is an equidigital number, since it uses as much as digits as its factorization.

1056978751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 49.

The square root of 1056978751 is about 32511.2096206831. The cubic root of 1056978751 is about 1018.6431885909.

The spelling of 1056978751 in words is "one billion, fifty-six million, nine hundred seventy-eight thousand, seven hundred fifty-one".