1073061809 has 2 divisors, whose sum is σ = 1073061810. Its totient is φ = 1073061808.

The previous prime is 1073061779. The next prime is 1073061817. The reversal of 1073061809 is 9081603701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992565025 + 80496784 = 31505^2 + 8972^2 .

It is an emirp because it is prime and its reverse (9081603701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073061809 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 (1073261809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536530904 + 536530905.

It is an arithmetic number, because the mean of its divisors is an integer number (536530905).

Almost surely, 2^1073061809 is an apocalyptic number.

It is an amenable number.

1073061809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073061809 is an equidigital number, since it uses as much as digits as its factorization.

1073061809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1073061809 is about 32757.6221511880. The cubic root of 1073061809 is about 1023.7837834025.

The spelling of 1073061809 in words is "one billion, seventy-three million, sixty-one thousand, eight hundred nine".