1120566521 has 2 divisors, whose sum is σ = 1120566522. Its totient is φ = 1120566520.

The previous prime is 1120566511. The next prime is 1120566547. The reversal of 1120566521 is 1256650211.

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., 1110555625 + 10010896 = 33325^2 + 3164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120566521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1120566511) 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, 560283260 + 560283261.

It is an arithmetic number, because the mean of its divisors is an integer number (560283261).

Almost surely, 2^1120566521 is an apocalyptic number.

It is an amenable number.

1120566521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120566521 is an equidigital number, since it uses as much as digits as its factorization.

1120566521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1120566521 is about 33474.8640176476. The cubic root of 1120566521 is about 1038.6738894836.

The spelling of 1120566521 in words is "one billion, one hundred twenty million, five hundred sixty-six thousand, five hundred twenty-one".