1073219561 has 2 divisors, whose sum is σ = 1073219562. Its totient is φ = 1073219560.

The previous prime is 1073219557. The next prime is 1073219569. The reversal of 1073219561 is 1659123701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070598400 + 2621161 = 32720^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073219561 - 2² = 1073219557 is a prime.

It is a super-2 number, since 2×1073219561² = 2303600452226065442, which contains 22 as substring.

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 (1073219569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536609780 + 536609781.

It is an arithmetic number, because the mean of its divisors is an integer number (536609781).

Almost surely, 2^1073219561 is an apocalyptic number.

It is an amenable number.

1073219561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073219561 is an equidigital number, since it uses as much as digits as its factorization.

1073219561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1073219561 is about 32760.0299297788. The cubic root of 1073219561 is about 1023.8339501386.

The spelling of 1073219561 in words is "one billion, seventy-three million, two hundred nineteen thousand, five hundred sixty-one".