1076725561 has 2 divisors, whose sum is σ = 1076725562. Its totient is φ = 1076725560.

The previous prime is 1076725541. The next prime is 1076725589. The reversal of 1076725561 is 1655276701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074593961 + 2131600 = 32781^2 + 1460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1076725561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1076725541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538362780 + 538362781.

It is an arithmetic number, because the mean of its divisors is an integer number (538362781).

Almost surely, 2^1076725561 is an apocalyptic number.

It is an amenable number.

1076725561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1076725561 is an equidigital number, since it uses as much as digits as its factorization.

1076725561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1076725561 is about 32813.4966286740. The cubic root of 1076725561 is about 1024.9476272269.

The spelling of 1076725561 in words is "one billion, seventy-six million, seven hundred twenty-five thousand, five hundred sixty-one".